diff --git a/api/test/opentelemetry/baggage_test.rb b/api/test/opentelemetry/baggage_test.rb
index d61b971a1e..2a0d3e49b6 100644
--- a/api/test/opentelemetry/baggage_test.rb
+++ b/api/test/opentelemetry/baggage_test.rb
@@ -7,7 +7,6 @@
 require 'test_helper'
 
 describe OpenTelemetry::Baggage do
-  Context = OpenTelemetry::Context
   let(:manager) { OpenTelemetry::Baggage }
 
   after do
diff --git a/api/test/opentelemetry/context/key_test.rb b/api/test/opentelemetry/context/key_test.rb
index 79057f4264..234d64645e 100644
--- a/api/test/opentelemetry/context/key_test.rb
+++ b/api/test/opentelemetry/context/key_test.rb
@@ -7,8 +7,6 @@
 require 'test_helper'
 
 describe OpenTelemetry::Context::Key do
-  Context = OpenTelemetry::Context
-
   after do
     Context.clear
   end
diff --git a/api/test/opentelemetry/context/propagation/composite_text_map_propagator_test.rb b/api/test/opentelemetry/context/propagation/composite_text_map_propagator_test.rb
index 8bd2f2b5e0..d1a81729b6 100644
--- a/api/test/opentelemetry/context/propagation/composite_text_map_propagator_test.rb
+++ b/api/test/opentelemetry/context/propagation/composite_text_map_propagator_test.rb
@@ -7,8 +7,6 @@
 require 'test_helper'
 
 describe OpenTelemetry::Context::Propagation::CompositeTextMapPropagator do
-  Context = OpenTelemetry::Context
-
   class TestInjector
     def initialize(key)
       @key = key
@@ -74,11 +72,10 @@ def extract(carrier, context:, getter: nil)
 
       it 'accepts explicit context' do
         Context.with_values('k1' => 'v1', 'k2' => 'v2') do
-          ctx = Context.current.set_value('k3', 'v3') do
-            carrier = {}
-            propagator.inject(carrier, context: ctx)
-            _(carrier).must_equal('k1' => 'v1', 'k2' => 'v2', 'k3' => 'v3')
-          end
+          ctx = Context.current.set_value('k3', 'v3')
+          carrier = {}
+          propagator.inject(carrier, context: ctx)
+          _(carrier).must_equal('k1' => 'v1', 'k2' => 'v2', 'k3' => 'v3')
         end
       end
 
diff --git a/api/test/opentelemetry/context_test.rb b/api/test/opentelemetry/context_test.rb
index a3f017adb7..db7ae8959e 100644
--- a/api/test/opentelemetry/context_test.rb
+++ b/api/test/opentelemetry/context_test.rb
@@ -9,8 +9,6 @@
 require 'stringio'
 
 describe OpenTelemetry::Context do
-  Context = OpenTelemetry::Context
-
   after { Context.clear }
 
   let(:foo_key) { Context.create_key('foo') }
diff --git a/api/test/test_helper.rb b/api/test/test_helper.rb
index 43aede5efc..afc676d044 100644
--- a/api/test/test_helper.rb
+++ b/api/test/test_helper.rb
@@ -15,3 +15,5 @@
 require 'minitest/autorun'
 
 OpenTelemetry.logger = Logger.new(File::NULL)
+
+Context = OpenTelemetry::Context
diff --git a/common/opentelemetry-common.gemspec b/common/opentelemetry-common.gemspec
index 3b486c3732..f9ff9e4820 100644
--- a/common/opentelemetry-common.gemspec
+++ b/common/opentelemetry-common.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/exporter/jaeger/opentelemetry-exporter-jaeger.gemspec b/exporter/jaeger/opentelemetry-exporter-jaeger.gemspec
index da52dfe655..9c739c255f 100644
--- a/exporter/jaeger/opentelemetry-exporter-jaeger.gemspec
+++ b/exporter/jaeger/opentelemetry-exporter-jaeger.gemspec
@@ -36,7 +36,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'faraday', '~> 0.13'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rspec-mocks'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
diff --git a/exporter/otlp-common/opentelemetry-exporter-otlp-common.gemspec b/exporter/otlp-common/opentelemetry-exporter-otlp-common.gemspec
index 622982c483..0d07a6edd1 100644
--- a/exporter/otlp-common/opentelemetry-exporter-otlp-common.gemspec
+++ b/exporter/otlp-common/opentelemetry-exporter-otlp-common.gemspec
@@ -35,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry'
   spec.add_development_dependency 'pry-byebug' unless RUBY_ENGINE == 'jruby'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'webmock', '~> 3.24'
diff --git a/exporter/otlp-grpc/opentelemetry-exporter-otlp-grpc.gemspec b/exporter/otlp-grpc/opentelemetry-exporter-otlp-grpc.gemspec
index 360447811b..53ffccc512 100644
--- a/exporter/otlp-grpc/opentelemetry-exporter-otlp-grpc.gemspec
+++ b/exporter/otlp-grpc/opentelemetry-exporter-otlp-grpc.gemspec
@@ -35,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry-byebug' unless RUBY_ENGINE == 'jruby'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'webmock', '~> 3.24'
diff --git a/exporter/otlp-http/opentelemetry-exporter-otlp-http.gemspec b/exporter/otlp-http/opentelemetry-exporter-otlp-http.gemspec
index 8ac366f6a9..b56c21f4f0 100644
--- a/exporter/otlp-http/opentelemetry-exporter-otlp-http.gemspec
+++ b/exporter/otlp-http/opentelemetry-exporter-otlp-http.gemspec
@@ -34,7 +34,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry-byebug' unless RUBY_ENGINE == 'jruby'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'webmock', '~> 3.24'
diff --git a/exporter/otlp-logs/opentelemetry-exporter-otlp-logs.gemspec b/exporter/otlp-logs/opentelemetry-exporter-otlp-logs.gemspec
index eecf31a6ec..fd7948f9a0 100644
--- a/exporter/otlp-logs/opentelemetry-exporter-otlp-logs.gemspec
+++ b/exporter/otlp-logs/opentelemetry-exporter-otlp-logs.gemspec
@@ -39,7 +39,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry-byebug' unless RUBY_ENGINE == 'jruby'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.3'
   spec.add_development_dependency 'rubocop-minitest', '~> 0.38.0'
   spec.add_development_dependency 'rubocop-performance', '~> 1.25'
diff --git a/exporter/otlp-metrics/opentelemetry-exporter-otlp-metrics.gemspec b/exporter/otlp-metrics/opentelemetry-exporter-otlp-metrics.gemspec
index f6fddd08cd..112ee258d2 100644
--- a/exporter/otlp-metrics/opentelemetry-exporter-otlp-metrics.gemspec
+++ b/exporter/otlp-metrics/opentelemetry-exporter-otlp-metrics.gemspec
@@ -39,7 +39,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry-byebug' unless RUBY_ENGINE == 'jruby'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'rubocop-minitest', '~> 0.38.0'
   spec.add_development_dependency 'rubocop-performance', '~> 1.25'
diff --git a/exporter/otlp/opentelemetry-exporter-otlp.gemspec b/exporter/otlp/opentelemetry-exporter-otlp.gemspec
index a5e4cf2835..fc995f71ff 100644
--- a/exporter/otlp/opentelemetry-exporter-otlp.gemspec
+++ b/exporter/otlp/opentelemetry-exporter-otlp.gemspec
@@ -37,7 +37,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry-byebug' unless RUBY_ENGINE == 'jruby'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'rubocop-minitest', '~> 0.38.0'
   spec.add_development_dependency 'rubocop-performance', '~> 1.25'
diff --git a/exporter/zipkin/opentelemetry-exporter-zipkin.gemspec b/exporter/zipkin/opentelemetry-exporter-zipkin.gemspec
index 4e957dea7c..e02459c007 100644
--- a/exporter/zipkin/opentelemetry-exporter-zipkin.gemspec
+++ b/exporter/zipkin/opentelemetry-exporter-zipkin.gemspec
@@ -35,7 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'faraday', '~> 0.13'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'webmock', '~> 3.24'
diff --git a/logs_api/opentelemetry-logs-api.gemspec b/logs_api/opentelemetry-logs-api.gemspec
index fe78dc752e..fd158b0f5f 100644
--- a/logs_api/opentelemetry-logs-api.gemspec
+++ b/logs_api/opentelemetry-logs-api.gemspec
@@ -26,6 +26,8 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency 'opentelemetry-api', '~> 1.0'
 
+  spec.add_development_dependency 'bundler', '>= 1.17'
+  spec.add_development_dependency 'logger', '~> 1.7'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
diff --git a/logs_sdk/opentelemetry-logs-sdk.gemspec b/logs_sdk/opentelemetry-logs-sdk.gemspec
index e25ed7b5ac..7f4ba6478f 100644
--- a/logs_sdk/opentelemetry-logs-sdk.gemspec
+++ b/logs_sdk/opentelemetry-logs-sdk.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers', '~> 0.4'
-  spec.add_development_dependency 'rake', '~> 13.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.22'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/metrics_api/opentelemetry-metrics-api.gemspec b/metrics_api/opentelemetry-metrics-api.gemspec
index 18d94db397..f7106a011f 100644
--- a/metrics_api/opentelemetry-metrics-api.gemspec
+++ b/metrics_api/opentelemetry-metrics-api.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'faraday', '~> 0.13'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers', '~> 0.3.0'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/metrics_sdk/opentelemetry-metrics-sdk.gemspec b/metrics_sdk/opentelemetry-metrics-sdk.gemspec
index 98bacf38a0..3223e3e606 100644
--- a/metrics_sdk/opentelemetry-metrics-sdk.gemspec
+++ b/metrics_sdk/opentelemetry-metrics-sdk.gemspec
@@ -33,7 +33,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'faraday', '~> 0.13'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/metrics_sdk/test/opentelemetry/sdk/metrics/fork_hooks_test.rb b/metrics_sdk/test/opentelemetry/sdk/metrics/fork_hooks_test.rb
index b99c9b5dd0..ffd5423c73 100644
--- a/metrics_sdk/test/opentelemetry/sdk/metrics/fork_hooks_test.rb
+++ b/metrics_sdk/test/opentelemetry/sdk/metrics/fork_hooks_test.rb
@@ -76,7 +76,7 @@ def after_fork
       end
     end.new
 
-    reader2 = OpenStruct.new
+    reader2 = Struct.new(:dummy).new
 
     meter_provider = OpenTelemetry::SDK::Metrics::MeterProvider.new
     meter_provider.add_metric_reader(reader1)
diff --git a/propagator/b3/opentelemetry-propagator-b3.gemspec b/propagator/b3/opentelemetry-propagator-b3.gemspec
index beec21764b..5a32c2aba3 100644
--- a/propagator/b3/opentelemetry-propagator-b3.gemspec
+++ b/propagator/b3/opentelemetry-propagator-b3.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'opentelemetry-api', '~> 1.1'
 
   spec.add_development_dependency 'minitest', '~> 5.0'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17.1'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/propagator/jaeger/opentelemetry-propagator-jaeger.gemspec b/propagator/jaeger/opentelemetry-propagator-jaeger.gemspec
index 7266a13453..752e96f186 100644
--- a/propagator/jaeger/opentelemetry-propagator-jaeger.gemspec
+++ b/propagator/jaeger/opentelemetry-propagator-jaeger.gemspec
@@ -30,7 +30,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-sdk', '~> 1.2'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17.1'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/registry/opentelemetry-registry.gemspec b/registry/opentelemetry-registry.gemspec
index bce6d34b73..60a4a7ce76 100644
--- a/registry/opentelemetry-registry.gemspec
+++ b/registry/opentelemetry-registry.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency 'appraisal', '~> 2.2.0'
   spec.add_development_dependency 'minitest', '~> 5.0'
-  spec.add_development_dependency 'rake', '~> 12.3.3'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rspec-mocks'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17.1'
diff --git a/sdk/opentelemetry-sdk.gemspec b/sdk/opentelemetry-sdk.gemspec
index fd1b342ac4..ca30f866db 100644
--- a/sdk/opentelemetry-sdk.gemspec
+++ b/sdk/opentelemetry-sdk.gemspec
@@ -42,7 +42,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'opentelemetry-instrumentation-base', '~> 0.20'
   spec.add_development_dependency 'opentelemetry-test-helpers'
   spec.add_development_dependency 'pry'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/sdk/test/opentelemetry/sdk/trace/span_test.rb b/sdk/test/opentelemetry/sdk/trace/span_test.rb
index 2af560b96c..396d9e3ee4 100644
--- a/sdk/test/opentelemetry/sdk/trace/span_test.rb
+++ b/sdk/test/opentelemetry/sdk/trace/span_test.rb
@@ -11,7 +11,6 @@
   SpanKind = OpenTelemetry::Trace::SpanKind
   Status = OpenTelemetry::Trace::Status
   Context = OpenTelemetry::Context
-  SpanLimits = OpenTelemetry::SDK::Trace::SpanLimits
 
   let(:context) { OpenTelemetry::Trace::SpanContext.new }
   let(:mock_span_processor) { Minitest::Mock.new }
@@ -507,7 +506,7 @@
 
   describe '#instrumentation_library' do
     it 'is identical to the instrumentation_scope' do
-      mock_span_processor.expect(:on_start, nil) { |s| yielded_span = s } # rubocop:disable Lint/UselessAssignment
+      mock_span_processor.expect(:on_start, nil) { |_s| pass }
       span = Span.new(
         context,
         Context.empty,
diff --git a/sdk/test/opentelemetry/sdk/trace/tracer_test.rb b/sdk/test/opentelemetry/sdk/trace/tracer_test.rb
index cbd11bc1f5..7bba2783a3 100644
--- a/sdk/test/opentelemetry/sdk/trace/tracer_test.rb
+++ b/sdk/test/opentelemetry/sdk/trace/tracer_test.rb
@@ -8,7 +8,6 @@
 
 describe OpenTelemetry::SDK::Trace::Tracer do
   Tracer = OpenTelemetry::SDK::Trace::Tracer
-  SpanLimits = OpenTelemetry::SDK::Trace::SpanLimits
 
   let(:tracer_provider) { OpenTelemetry::SDK::Trace::TracerProvider.new }
   let(:tracer) do
diff --git a/sdk/test/opentelemetry/sdk_test.rb b/sdk/test/opentelemetry/sdk_test.rb
index a7f65eb9a6..110d88e8e8 100644
--- a/sdk/test/opentelemetry/sdk_test.rb
+++ b/sdk/test/opentelemetry/sdk_test.rb
@@ -33,7 +33,7 @@
       config = OpenTelemetry::TestHelpers.with_env('OTEL_SDK_DISABLED' => 'true') do
         OpenTelemetry::SDK.configure
       end
-      _(config).must_equal nil
+      assert_nil(config)
     end
   end
 end
diff --git a/sdk/test/test_helper.rb b/sdk/test/test_helper.rb
index 40dbe15186..ff7bcbd6f2 100644
--- a/sdk/test/test_helper.rb
+++ b/sdk/test/test_helper.rb
@@ -17,3 +17,5 @@
 require 'pry'
 
 OpenTelemetry.logger = Logger.new(File::NULL)
+
+SpanLimits = OpenTelemetry::SDK::Trace::SpanLimits
diff --git a/sdk_experimental/opentelemetry-sdk-experimental.gemspec b/sdk_experimental/opentelemetry-sdk-experimental.gemspec
index b718f4b0bc..318a45a2eb 100644
--- a/sdk_experimental/opentelemetry-sdk-experimental.gemspec
+++ b/sdk_experimental/opentelemetry-sdk-experimental.gemspec
@@ -32,7 +32,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'faraday', '~> 0.13'
   spec.add_development_dependency 'minitest', '~> 5.0'
   spec.add_development_dependency 'opentelemetry-test-helpers'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'yard', '~> 0.9'
diff --git a/semantic_conventions/opentelemetry-semantic_conventions.gemspec b/semantic_conventions/opentelemetry-semantic_conventions.gemspec
index e4f9b51c2b..40181b96ef 100644
--- a/semantic_conventions/opentelemetry-semantic_conventions.gemspec
+++ b/semantic_conventions/opentelemetry-semantic_conventions.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
 
   spec.add_development_dependency 'kramdown', '~> 2.3'
   spec.add_development_dependency 'minitest', '~> 5.0'
-  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rake', '~> 13.3'
   spec.add_development_dependency 'rubocop', '~> 1.65'
   spec.add_development_dependency 'simplecov', '~> 0.17'
   spec.add_development_dependency 'yard', '~> 0.9'