diff --git a/Gemfile b/Gemfile
index 4c9f284..a1c68b6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,11 +1,12 @@
-
 source 'https://rubygems.org/'
 
-gem "fluentd", :github => 'fluent/fluentd'
-
 gemspec
 
-gem "simplecov", :require => false
+gem "rake", ">= 0.9.2"
+gem "rspec", ">= 3.0.0"
+gem "rspec-its", ">= 1.1.0"
+gem "timecop", ">= 0.3.0"
+gem "fluentd"
+gem "test-unit"
+gem "simplecov", ">= 0.5.4", require: false
 gem "simplecov-vim"
-
-gem 'test-unit'
diff --git a/fluent-logger.gemspec b/fluent-logger.gemspec
index 8811ae6..dfa5924 100644
--- a/fluent-logger.gemspec
+++ b/fluent-logger.gemspec
@@ -22,14 +22,6 @@ Gem::Specification.new do |gem|
   gem.license       = "Apache-2.0"
 
   gem.add_dependency "msgpack", ">= 1.0.0", "< 2"
-
   # logger gem that isn't default gems as of Ruby 3.5
-  gem.add_runtime_dependency("logger", ["~> 1.6"])
-
-  gem.add_development_dependency 'rake', '>= 0.9.2'
-  gem.add_development_dependency 'rspec', '>= 3.0.0'
-  gem.add_development_dependency 'rspec-its', '>= 1.1.0'
-  gem.add_development_dependency 'simplecov', '>= 0.5.4'
-  gem.add_development_dependency 'timecop', '>= 0.3.0'
-  gem.add_development_dependency 'webrick'
+  gem.add_dependency "logger", "~> 1.6"
 end