diff --git a/.instrumentation_generator/templates/gemspec.tt b/.instrumentation_generator/templates/gemspec.tt
index e35db7fa9f..02d014591b 100644
--- a/.instrumentation_generator/templates/gemspec.tt
+++ b/.instrumentation_generator/templates/gemspec.tt
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/<%= instrumentation_name %>/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/<%= instrumentation_name %>'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/<%= instrumentation_name %>"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/helpers/mysql/opentelemetry-helpers-mysql.gemspec b/helpers/mysql/opentelemetry-helpers-mysql.gemspec
index f9593236de..22ad10ebc8 100644
--- a/helpers/mysql/opentelemetry-helpers-mysql.gemspec
+++ b/helpers/mysql/opentelemetry-helpers-mysql.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/helpers/mysql/version'
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/helpers/mysql'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/helpers/mysql"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/helpers/sql-obfuscation/opentelemetry-helpers-sql-obfuscation.gemspec b/helpers/sql-obfuscation/opentelemetry-helpers-sql-obfuscation.gemspec
index 2d5a1bc9d0..bf34bf8b47 100644
--- a/helpers/sql-obfuscation/opentelemetry-helpers-sql-obfuscation.gemspec
+++ b/helpers/sql-obfuscation/opentelemetry-helpers-sql-obfuscation.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/helpers/sql_obfuscation/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/helpers/sql-obfuscation'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/helpers/sql-obfuscation"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/helpers/sql-processor/opentelemetry-helpers-sql-processor.gemspec b/helpers/sql-processor/opentelemetry-helpers-sql-processor.gemspec
index 972b29d574..996e99734c 100644
--- a/helpers/sql-processor/opentelemetry-helpers-sql-processor.gemspec
+++ b/helpers/sql-processor/opentelemetry-helpers-sql-processor.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/helpers/sql_processor/version'
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/helpers/sql-processor'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/helpers/sql-processor"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/helpers/sql/opentelemetry-helpers-sql.gemspec b/helpers/sql/opentelemetry-helpers-sql.gemspec
index 2896efcb18..b1a7815def 100644
--- a/helpers/sql/opentelemetry-helpers-sql.gemspec
+++ b/helpers/sql/opentelemetry-helpers-sql.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/helpers/sql/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/helpers/sql'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/helpers/sql"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/action_mailer/opentelemetry-instrumentation-action_mailer.gemspec b/instrumentation/action_mailer/opentelemetry-instrumentation-action_mailer.gemspec
index 2a67fe8ae7..e05405f689 100644
--- a/instrumentation/action_mailer/opentelemetry-instrumentation-action_mailer.gemspec
+++ b/instrumentation/action_mailer/opentelemetry-instrumentation-action_mailer.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/action_mailer/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/action_mailer'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/action_mailer"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/action_pack/opentelemetry-instrumentation-action_pack.gemspec b/instrumentation/action_pack/opentelemetry-instrumentation-action_pack.gemspec
index ae614dfb7d..0322a579e7 100644
--- a/instrumentation/action_pack/opentelemetry-instrumentation-action_pack.gemspec
+++ b/instrumentation/action_pack/opentelemetry-instrumentation-action_pack.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/action_pack/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/action_pack'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/action_pack"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/action_view/opentelemetry-instrumentation-action_view.gemspec b/instrumentation/action_view/opentelemetry-instrumentation-action_view.gemspec
index 1236a46531..8414b7a2e0 100644
--- a/instrumentation/action_view/opentelemetry-instrumentation-action_view.gemspec
+++ b/instrumentation/action_view/opentelemetry-instrumentation-action_view.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/action_view/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/action_view'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/action_view"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/active_job/opentelemetry-instrumentation-active_job.gemspec b/instrumentation/active_job/opentelemetry-instrumentation-active_job.gemspec
index deb167a4ec..efd4aedf60 100644
--- a/instrumentation/active_job/opentelemetry-instrumentation-active_job.gemspec
+++ b/instrumentation/active_job/opentelemetry-instrumentation-active_job.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/active_job/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/active_job'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/active_job"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/active_model_serializers/opentelemetry-instrumentation-active_model_serializers.gemspec b/instrumentation/active_model_serializers/opentelemetry-instrumentation-active_model_serializers.gemspec
index e73074fd96..089d865ff0 100644
--- a/instrumentation/active_model_serializers/opentelemetry-instrumentation-active_model_serializers.gemspec
+++ b/instrumentation/active_model_serializers/opentelemetry-instrumentation-active_model_serializers.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/active_model_serializers/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/active_model_serializers'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/active_model_serializers"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/active_record/opentelemetry-instrumentation-active_record.gemspec b/instrumentation/active_record/opentelemetry-instrumentation-active_record.gemspec
index 9815dcbbb7..b62e5eb3d9 100644
--- a/instrumentation/active_record/opentelemetry-instrumentation-active_record.gemspec
+++ b/instrumentation/active_record/opentelemetry-instrumentation-active_record.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/active_record/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/active_record'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/active_record"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/active_storage/opentelemetry-instrumentation-active_storage.gemspec b/instrumentation/active_storage/opentelemetry-instrumentation-active_storage.gemspec
index 58af9f569e..c5483b8b63 100644
--- a/instrumentation/active_storage/opentelemetry-instrumentation-active_storage.gemspec
+++ b/instrumentation/active_storage/opentelemetry-instrumentation-active_storage.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/active_storage/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/active_storage'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/active_storage"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/active_support/opentelemetry-instrumentation-active_support.gemspec b/instrumentation/active_support/opentelemetry-instrumentation-active_support.gemspec
index 935c5a71d3..51f08de16a 100644
--- a/instrumentation/active_support/opentelemetry-instrumentation-active_support.gemspec
+++ b/instrumentation/active_support/opentelemetry-instrumentation-active_support.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/active_support/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/active_support'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/active_support"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/all/opentelemetry-instrumentation-all.gemspec b/instrumentation/all/opentelemetry-instrumentation-all.gemspec
index dadcf5be6c..26357526a7 100644
--- a/instrumentation/all/opentelemetry-instrumentation-all.gemspec
+++ b/instrumentation/all/opentelemetry-instrumentation-all.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
@@ -66,7 +67,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/all'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/all"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/anthropic/opentelemetry-instrumentation-anthropic.gemspec b/instrumentation/anthropic/opentelemetry-instrumentation-anthropic.gemspec
index 4ccce576e8..21211f12bf 100644
--- a/instrumentation/anthropic/opentelemetry-instrumentation-anthropic.gemspec
+++ b/instrumentation/anthropic/opentelemetry-instrumentation-anthropic.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/anthropic/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/anthropic'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/anthropic"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/aws_lambda/opentelemetry-instrumentation-aws_lambda.gemspec b/instrumentation/aws_lambda/opentelemetry-instrumentation-aws_lambda.gemspec
index 7fb35466ee..2e23ce767d 100644
--- a/instrumentation/aws_lambda/opentelemetry-instrumentation-aws_lambda.gemspec
+++ b/instrumentation/aws_lambda/opentelemetry-instrumentation-aws_lambda.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/aws_lambda/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/aws_lambda'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/aws_lambda"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/aws_sdk/opentelemetry-instrumentation-aws_sdk.gemspec b/instrumentation/aws_sdk/opentelemetry-instrumentation-aws_sdk.gemspec
index 2ced5822f7..245cc28f5b 100644
--- a/instrumentation/aws_sdk/opentelemetry-instrumentation-aws_sdk.gemspec
+++ b/instrumentation/aws_sdk/opentelemetry-instrumentation-aws_sdk.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/aws_sdk/version'
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/aws_sdk'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/aws_sdk"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/base/opentelemetry-instrumentation-base.gemspec b/instrumentation/base/opentelemetry-instrumentation-base.gemspec
index 1f1257a027..e6cfe3fdb5 100644
--- a/instrumentation/base/opentelemetry-instrumentation-base.gemspec
+++ b/instrumentation/base/opentelemetry-instrumentation-base.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/version'
@@ -31,7 +32,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/base'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/base"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/bunny/opentelemetry-instrumentation-bunny.gemspec b/instrumentation/bunny/opentelemetry-instrumentation-bunny.gemspec
index 0fc4d0f4f3..690d63ed2c 100644
--- a/instrumentation/bunny/opentelemetry-instrumentation-bunny.gemspec
+++ b/instrumentation/bunny/opentelemetry-instrumentation-bunny.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/bunny/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby/tree/master/instrumentation/bunny'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/bunny"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/concurrent_ruby/opentelemetry-instrumentation-concurrent_ruby.gemspec b/instrumentation/concurrent_ruby/opentelemetry-instrumentation-concurrent_ruby.gemspec
index 1ee1d99c3f..79c8f8e5bb 100644
--- a/instrumentation/concurrent_ruby/opentelemetry-instrumentation-concurrent_ruby.gemspec
+++ b/instrumentation/concurrent_ruby/opentelemetry-instrumentation-concurrent_ruby.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/concurrent_ruby/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/concurrent_ruby'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/concurrent_ruby"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/dalli/opentelemetry-instrumentation-dalli.gemspec b/instrumentation/dalli/opentelemetry-instrumentation-dalli.gemspec
index 557dfb289a..5c6476deeb 100644
--- a/instrumentation/dalli/opentelemetry-instrumentation-dalli.gemspec
+++ b/instrumentation/dalli/opentelemetry-instrumentation-dalli.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/dalli/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/dalli'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/dalli"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/delayed_job/opentelemetry-instrumentation-delayed_job.gemspec b/instrumentation/delayed_job/opentelemetry-instrumentation-delayed_job.gemspec
index 7474a5d693..acb3520bb3 100644
--- a/instrumentation/delayed_job/opentelemetry-instrumentation-delayed_job.gemspec
+++ b/instrumentation/delayed_job/opentelemetry-instrumentation-delayed_job.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/delayed_job/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/delayed_job'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/delayed_job"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/ethon/opentelemetry-instrumentation-ethon.gemspec b/instrumentation/ethon/opentelemetry-instrumentation-ethon.gemspec
index e7e8ada737..9bfb3eb92e 100644
--- a/instrumentation/ethon/opentelemetry-instrumentation-ethon.gemspec
+++ b/instrumentation/ethon/opentelemetry-instrumentation-ethon.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/ethon/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/ethon'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/ethon"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/excon/opentelemetry-instrumentation-excon.gemspec b/instrumentation/excon/opentelemetry-instrumentation-excon.gemspec
index abcc392749..04360692c9 100644
--- a/instrumentation/excon/opentelemetry-instrumentation-excon.gemspec
+++ b/instrumentation/excon/opentelemetry-instrumentation-excon.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/excon/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/excon'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/excon"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/factory_bot/opentelemetry-instrumentation-factory_bot.gemspec b/instrumentation/factory_bot/opentelemetry-instrumentation-factory_bot.gemspec
index 2e1a9271fb..d3acab63c9 100644
--- a/instrumentation/factory_bot/opentelemetry-instrumentation-factory_bot.gemspec
+++ b/instrumentation/factory_bot/opentelemetry-instrumentation-factory_bot.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/factory_bot/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/factory_bot'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/factory_bot"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/faraday/opentelemetry-instrumentation-faraday.gemspec b/instrumentation/faraday/opentelemetry-instrumentation-faraday.gemspec
index 1614ce502c..91212027a6 100644
--- a/instrumentation/faraday/opentelemetry-instrumentation-faraday.gemspec
+++ b/instrumentation/faraday/opentelemetry-instrumentation-faraday.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/faraday/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/faraday'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/faraday"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/grape/opentelemetry-instrumentation-grape.gemspec b/instrumentation/grape/opentelemetry-instrumentation-grape.gemspec
index 06946851ee..54073d7d50 100644
--- a/instrumentation/grape/opentelemetry-instrumentation-grape.gemspec
+++ b/instrumentation/grape/opentelemetry-instrumentation-grape.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/grape/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/grape'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/grape"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/graphql/opentelemetry-instrumentation-graphql.gemspec b/instrumentation/graphql/opentelemetry-instrumentation-graphql.gemspec
index b978768382..ddedc55984 100644
--- a/instrumentation/graphql/opentelemetry-instrumentation-graphql.gemspec
+++ b/instrumentation/graphql/opentelemetry-instrumentation-graphql.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/graphql/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/graphql'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/graphql"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/grpc/opentelemetry-instrumentation-grpc.gemspec b/instrumentation/grpc/opentelemetry-instrumentation-grpc.gemspec
index a1dc042b25..7b6ed993fd 100644
--- a/instrumentation/grpc/opentelemetry-instrumentation-grpc.gemspec
+++ b/instrumentation/grpc/opentelemetry-instrumentation-grpc.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 require_relative 'lib/opentelemetry/instrumentation/grpc/version'
 
 Gem::Specification.new do |spec|
@@ -39,7 +40,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://open-telemetry.github.io/opentelemetry-ruby-contrib/opentelemetry-instrumentation-grpc/v#{OpenTelemetry::Instrumentation::Grpc::VERSION}/file.CHANGELOG.html"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/grpc'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/grpc"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://open-telemetry.github.io/opentelemetry-ruby-contrib/opentelemetry-instrumentation-grpc/v#{OpenTelemetry::Instrumentation::Grpc::VERSION}"
   end
diff --git a/instrumentation/gruf/opentelemetry-instrumentation-gruf.gemspec b/instrumentation/gruf/opentelemetry-instrumentation-gruf.gemspec
index 207bdd6b70..9dac474a0f 100644
--- a/instrumentation/gruf/opentelemetry-instrumentation-gruf.gemspec
+++ b/instrumentation/gruf/opentelemetry-instrumentation-gruf.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/gruf/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://open-telemetry.github.io/opentelemetry-ruby-contrib/opentelemetry-instrumentation-gruf/v#{OpenTelemetry::Instrumentation::Gruf::VERSION}/file.CHANGELOG.html"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/gruf'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/gruf"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://open-telemetry.github.io/opentelemetry-ruby-contrib/opentelemetry-instrumentation-gruf/v#{OpenTelemetry::Instrumentation::Gruf::VERSION}"
   end
diff --git a/instrumentation/http/opentelemetry-instrumentation-http.gemspec b/instrumentation/http/opentelemetry-instrumentation-http.gemspec
index 61fc35d572..111c14c87f 100644
--- a/instrumentation/http/opentelemetry-instrumentation-http.gemspec
+++ b/instrumentation/http/opentelemetry-instrumentation-http.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/http/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/http'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/http"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/http_client/opentelemetry-instrumentation-http_client.gemspec b/instrumentation/http_client/opentelemetry-instrumentation-http_client.gemspec
index 30f294faac..34676766e4 100644
--- a/instrumentation/http_client/opentelemetry-instrumentation-http_client.gemspec
+++ b/instrumentation/http_client/opentelemetry-instrumentation-http_client.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/http_client/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/http_client'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/http_client"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/httpx/opentelemetry-instrumentation-httpx.gemspec b/instrumentation/httpx/opentelemetry-instrumentation-httpx.gemspec
index 8ed967f9c5..e850cf7233 100644
--- a/instrumentation/httpx/opentelemetry-instrumentation-httpx.gemspec
+++ b/instrumentation/httpx/opentelemetry-instrumentation-httpx.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/httpx/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/http'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/http"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/koala/opentelemetry-instrumentation-koala.gemspec b/instrumentation/koala/opentelemetry-instrumentation-koala.gemspec
index 624e766820..bf6911ded5 100644
--- a/instrumentation/koala/opentelemetry-instrumentation-koala.gemspec
+++ b/instrumentation/koala/opentelemetry-instrumentation-koala.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/koala/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/koala'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/koala"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/lmdb/opentelemetry-instrumentation-lmdb.gemspec b/instrumentation/lmdb/opentelemetry-instrumentation-lmdb.gemspec
index 101b725324..69893a8fe5 100644
--- a/instrumentation/lmdb/opentelemetry-instrumentation-lmdb.gemspec
+++ b/instrumentation/lmdb/opentelemetry-instrumentation-lmdb.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/lmdb/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/lmdb'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/lmdb"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/logger/opentelemetry-instrumentation-logger.gemspec b/instrumentation/logger/opentelemetry-instrumentation-logger.gemspec
index 502cdd5cf7..f044b14297 100644
--- a/instrumentation/logger/opentelemetry-instrumentation-logger.gemspec
+++ b/instrumentation/logger/opentelemetry-instrumentation-logger.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/logger/version'
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/logger'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/logger"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/mongo/opentelemetry-instrumentation-mongo.gemspec b/instrumentation/mongo/opentelemetry-instrumentation-mongo.gemspec
index 7333c13527..eb0f5b0a80 100644
--- a/instrumentation/mongo/opentelemetry-instrumentation-mongo.gemspec
+++ b/instrumentation/mongo/opentelemetry-instrumentation-mongo.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/mongo/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/mongo'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/mongo"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/mysql2/opentelemetry-instrumentation-mysql2.gemspec b/instrumentation/mysql2/opentelemetry-instrumentation-mysql2.gemspec
index ded3be8361..d9128146c6 100644
--- a/instrumentation/mysql2/opentelemetry-instrumentation-mysql2.gemspec
+++ b/instrumentation/mysql2/opentelemetry-instrumentation-mysql2.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/mysql2/version'
@@ -32,7 +33,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/mysql2'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/mysql2"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/net_http/opentelemetry-instrumentation-net_http.gemspec b/instrumentation/net_http/opentelemetry-instrumentation-net_http.gemspec
index f3108515e4..f157b4159e 100644
--- a/instrumentation/net_http/opentelemetry-instrumentation-net_http.gemspec
+++ b/instrumentation/net_http/opentelemetry-instrumentation-net_http.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/net/http/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/net_http'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/net_http"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/pg/opentelemetry-instrumentation-pg.gemspec b/instrumentation/pg/opentelemetry-instrumentation-pg.gemspec
index f74512ae6d..00177cb506 100644
--- a/instrumentation/pg/opentelemetry-instrumentation-pg.gemspec
+++ b/instrumentation/pg/opentelemetry-instrumentation-pg.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/pg/version'
@@ -31,7 +32,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/pg'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/pg"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/que/opentelemetry-instrumentation-que.gemspec b/instrumentation/que/opentelemetry-instrumentation-que.gemspec
index 262f537c43..2cc7ad5eb5 100644
--- a/instrumentation/que/opentelemetry-instrumentation-que.gemspec
+++ b/instrumentation/que/opentelemetry-instrumentation-que.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/que/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/que'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/que"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/racecar/opentelemetry-instrumentation-racecar.gemspec b/instrumentation/racecar/opentelemetry-instrumentation-racecar.gemspec
index 81e57b05ef..5fb465268d 100644
--- a/instrumentation/racecar/opentelemetry-instrumentation-racecar.gemspec
+++ b/instrumentation/racecar/opentelemetry-instrumentation-racecar.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/racecar/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/racecar'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/racecar"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/rack/opentelemetry-instrumentation-rack.gemspec b/instrumentation/rack/opentelemetry-instrumentation-rack.gemspec
index 1a0ca160f1..aa5a093e0e 100644
--- a/instrumentation/rack/opentelemetry-instrumentation-rack.gemspec
+++ b/instrumentation/rack/opentelemetry-instrumentation-rack.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/rack/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/rack'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/rack"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec b/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
index b9b9c6262a..47141abd0a 100644
--- a/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
+++ b/instrumentation/rails/opentelemetry-instrumentation-rails.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/rails/version'
@@ -34,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'opentelemetry-instrumentation-active_support', '~> 0.10'
   spec.add_dependency 'opentelemetry-instrumentation-concurrent_ruby', '~> 0.23'
 
-  spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/rails' if spec.respond_to?(:metadata)
+  spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/rails" if spec.respond_to?(:metadata)
 
   spec.post_install_message = File.read(File.expand_path('../../gemspecs/POST_INSTALL_MESSAGE', __dir__))
 end
diff --git a/instrumentation/rake/opentelemetry-instrumentation-rake.gemspec b/instrumentation/rake/opentelemetry-instrumentation-rake.gemspec
index 96db95b232..84ea22db20 100644
--- a/instrumentation/rake/opentelemetry-instrumentation-rake.gemspec
+++ b/instrumentation/rake/opentelemetry-instrumentation-rake.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/rake/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/rake'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/rake"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/rdkafka/opentelemetry-instrumentation-rdkafka.gemspec b/instrumentation/rdkafka/opentelemetry-instrumentation-rdkafka.gemspec
index 6c8de614f0..aead860bb4 100644
--- a/instrumentation/rdkafka/opentelemetry-instrumentation-rdkafka.gemspec
+++ b/instrumentation/rdkafka/opentelemetry-instrumentation-rdkafka.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/rdkafka/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/rdkafka'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/rdkafka"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/redis/opentelemetry-instrumentation-redis.gemspec b/instrumentation/redis/opentelemetry-instrumentation-redis.gemspec
index cf6f51fab0..7687b9cc05 100644
--- a/instrumentation/redis/opentelemetry-instrumentation-redis.gemspec
+++ b/instrumentation/redis/opentelemetry-instrumentation-redis.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/redis/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/redis'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/redis"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/resque/opentelemetry-instrumentation-resque.gemspec b/instrumentation/resque/opentelemetry-instrumentation-resque.gemspec
index 98d03f8160..b8375c895e 100644
--- a/instrumentation/resque/opentelemetry-instrumentation-resque.gemspec
+++ b/instrumentation/resque/opentelemetry-instrumentation-resque.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/resque/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/resque'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/resque"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/restclient/opentelemetry-instrumentation-restclient.gemspec b/instrumentation/restclient/opentelemetry-instrumentation-restclient.gemspec
index e5423bcbe6..e2dc78b1aa 100644
--- a/instrumentation/restclient/opentelemetry-instrumentation-restclient.gemspec
+++ b/instrumentation/restclient/opentelemetry-instrumentation-restclient.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/restclient/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/restclient'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/restclient"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/rspec/opentelemetry-instrumentation-rspec.gemspec b/instrumentation/rspec/opentelemetry-instrumentation-rspec.gemspec
index 229dcf1d87..21ad5276ec 100644
--- a/instrumentation/rspec/opentelemetry-instrumentation-rspec.gemspec
+++ b/instrumentation/rspec/opentelemetry-instrumentation-rspec.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/rspec/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/rspec'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/rspec"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/ruby_kafka/opentelemetry-instrumentation-ruby_kafka.gemspec b/instrumentation/ruby_kafka/opentelemetry-instrumentation-ruby_kafka.gemspec
index f1392fcb22..0f55333910 100644
--- a/instrumentation/ruby_kafka/opentelemetry-instrumentation-ruby_kafka.gemspec
+++ b/instrumentation/ruby_kafka/opentelemetry-instrumentation-ruby_kafka.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/ruby_kafka/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/ruby_kafka'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/ruby_kafka"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/sidekiq/opentelemetry-instrumentation-sidekiq.gemspec b/instrumentation/sidekiq/opentelemetry-instrumentation-sidekiq.gemspec
index 90d20154cb..ad7a15ed2f 100644
--- a/instrumentation/sidekiq/opentelemetry-instrumentation-sidekiq.gemspec
+++ b/instrumentation/sidekiq/opentelemetry-instrumentation-sidekiq.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/sidekiq/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/sidekiq'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/sidekiq"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/sinatra/opentelemetry-instrumentation-sinatra.gemspec b/instrumentation/sinatra/opentelemetry-instrumentation-sinatra.gemspec
index b5d46ade93..259c87b23a 100644
--- a/instrumentation/sinatra/opentelemetry-instrumentation-sinatra.gemspec
+++ b/instrumentation/sinatra/opentelemetry-instrumentation-sinatra.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/sinatra/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/sinatra'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/sinatra"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/instrumentation/trilogy/opentelemetry-instrumentation-trilogy.gemspec b/instrumentation/trilogy/opentelemetry-instrumentation-trilogy.gemspec
index 26b34bfb6c..e78c84b1a4 100644
--- a/instrumentation/trilogy/opentelemetry-instrumentation-trilogy.gemspec
+++ b/instrumentation/trilogy/opentelemetry-instrumentation-trilogy.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/instrumentation/trilogy/version'
@@ -33,7 +34,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/instrumentation/trilogy'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/instrumentation/trilogy"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/processor/baggage/opentelemetry-processor-baggage.gemspec b/processor/baggage/opentelemetry-processor-baggage.gemspec
index bbaadf730d..53a41eeb8c 100644
--- a/processor/baggage/opentelemetry-processor-baggage.gemspec
+++ b/processor/baggage/opentelemetry-processor-baggage.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 require_relative 'lib/opentelemetry/processor/baggage/version'
 
 Gem::Specification.new do |spec|
@@ -27,7 +28,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/processor/baggage'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/processor/baggage"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/propagator/google_cloud_trace_context/opentelemetry-propagator-google_cloud_trace_context.gemspec b/propagator/google_cloud_trace_context/opentelemetry-propagator-google_cloud_trace_context.gemspec
index f44f96112b..7f7fa1bfee 100644
--- a/propagator/google_cloud_trace_context/opentelemetry-propagator-google_cloud_trace_context.gemspec
+++ b/propagator/google_cloud_trace_context/opentelemetry-propagator-google_cloud_trace_context.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/propagator/google_cloud_trace_context'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/propagator/google_cloud_trace_context"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/propagator/ottrace/opentelemetry-propagator-ottrace.gemspec b/propagator/ottrace/opentelemetry-propagator-ottrace.gemspec
index bee4b9d8f9..34407bce77 100644
--- a/propagator/ottrace/opentelemetry-propagator-ottrace.gemspec
+++ b/propagator/ottrace/opentelemetry-propagator-ottrace.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 require_relative 'lib/opentelemetry/propagator/ottrace/version'
 
 Gem::Specification.new do |spec|
@@ -27,7 +28,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/propagator/ottrace'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/propagator/ottrace"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/propagator/vitess/opentelemetry-propagator-vitess.gemspec b/propagator/vitess/opentelemetry-propagator-vitess.gemspec
index 15d49036cb..c6fb6982d8 100644
--- a/propagator/vitess/opentelemetry-propagator-vitess.gemspec
+++ b/propagator/vitess/opentelemetry-propagator-vitess.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 require_relative 'lib/opentelemetry/propagator/vitess/version'
 
 Gem::Specification.new do |spec|
@@ -27,7 +28,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/propagator/vitess'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/propagator/vitess"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/propagator/xray/opentelemetry-propagator-xray.gemspec b/propagator/xray/opentelemetry-propagator-xray.gemspec
index 558eb42e99..3161c40b91 100644
--- a/propagator/xray/opentelemetry-propagator-xray.gemspec
+++ b/propagator/xray/opentelemetry-propagator-xray.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/propagator/xray'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/propagator/xray"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/resources/aws/opentelemetry-resource-detector-aws.gemspec b/resources/aws/opentelemetry-resource-detector-aws.gemspec
index 30a0787f16..1e3c4e8da6 100644
--- a/resources/aws/opentelemetry-resource-detector-aws.gemspec
+++ b/resources/aws/opentelemetry-resource-detector-aws.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/resource/detector/aws/version'
@@ -25,4 +26,11 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 3.2'
 
   spec.add_dependency 'opentelemetry-sdk', '~> 1.10'
+
+  if spec.respond_to?(:metadata)
+    spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/resources/aws"
+    spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
+    spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
+  end
 end
diff --git a/resources/azure/opentelemetry-resource-detector-azure.gemspec b/resources/azure/opentelemetry-resource-detector-azure.gemspec
index fefd0a8553..8f4d6ba800 100644
--- a/resources/azure/opentelemetry-resource-detector-azure.gemspec
+++ b/resources/azure/opentelemetry-resource-detector-azure.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/resource/detector/azure/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/resources/container'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/resources/container"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/resources/container/opentelemetry-resource-detector-container.gemspec b/resources/container/opentelemetry-resource-detector-container.gemspec
index 0d84d29460..4bebd1f6ed 100644
--- a/resources/container/opentelemetry-resource-detector-container.gemspec
+++ b/resources/container/opentelemetry-resource-detector-container.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/resource/detector/container/version'
@@ -29,7 +30,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/resources/container'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/resources/container"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/resources/google_cloud_platform/opentelemetry-resource-detector-google_cloud_platform.gemspec b/resources/google_cloud_platform/opentelemetry-resource-detector-google_cloud_platform.gemspec
index b206bfa11d..e7bbb1321f 100644
--- a/resources/google_cloud_platform/opentelemetry-resource-detector-google_cloud_platform.gemspec
+++ b/resources/google_cloud_platform/opentelemetry-resource-detector-google_cloud_platform.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'opentelemetry/resource/detector/google_cloud_platform/version'
@@ -30,7 +31,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/resources/container'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/resources/container"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end
diff --git a/sampler/xray/opentelemetry-sampler-xray.gemspec b/sampler/xray/opentelemetry-sampler-xray.gemspec
index d915c98b77..a85d75bef9 100644
--- a/sampler/xray/opentelemetry-sampler-xray.gemspec
+++ b/sampler/xray/opentelemetry-sampler-xray.gemspec
@@ -4,6 +4,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
+commit = ENV['GITHUB_SHA'] || 'main'
 lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 
@@ -32,7 +33,7 @@ Gem::Specification.new do |spec|
 
   if spec.respond_to?(:metadata)
     spec.metadata['changelog_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}/file/CHANGELOG.md"
-    spec.metadata['source_code_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/main/sampler/xray'
+    spec.metadata['source_code_uri'] = "https://github.com/open-telemetry/opentelemetry-ruby-contrib/tree/#{commit}/sampler/xray"
     spec.metadata['bug_tracker_uri'] = 'https://github.com/open-telemetry/opentelemetry-ruby-contrib/issues'
     spec.metadata['documentation_uri'] = "https://rubydoc.info/gems/#{spec.name}/#{spec.version}"
   end