diff --git a/.rubocop.yml b/.rubocop.yml
index 353957e..88c9b12 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -79,6 +79,3 @@ RSpec/ExampleLength:
 RSpec/ContextWording:
   Exclude:
     - spec/shared_contexts.rb
-
-Gemspec/DevelopmentDependencies:
-  EnforcedStyle: gemspec
diff --git a/Gemfile b/Gemfile
index 1ad1c3f..58cb5bb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,16 @@
 
 source 'https://rubygems.org'
 
-# Specify your gem's dependencies in rubocop-thread_safety.gemspec
 gemspec
+
+gem 'appraisal'
+gem 'bundler', '>= 1.10', '< 3'
+gem 'prism', '~> 1.2.0'
+gem 'pry' unless ENV['CI']
+gem 'rake', '>= 10.0'
+gem 'rspec', '~> 3.0'
+gem 'rubocop', github: 'rubocop/rubocop'
+gem 'rubocop-rake', '~> 0.6.0'
+gem 'rubocop-rspec'
+gem 'simplecov'
+gem 'yard'
diff --git a/docs/modules/ROOT/pages/cops_threadsafety.adoc b/docs/modules/ROOT/pages/cops_threadsafety.adoc
index f8151e8..bb35f4b 100644
--- a/docs/modules/ROOT/pages/cops_threadsafety.adoc
+++ b/docs/modules/ROOT/pages/cops_threadsafety.adoc
@@ -6,6 +6,7 @@
 
 = ThreadSafety
 
+[#threadsafetyclassandmoduleattributes]
 == ThreadSafety/ClassAndModuleAttributes
 
 |===
@@ -22,6 +23,7 @@ Avoid mutating class and module attributes.
 
 They are implemented by class variables, which are not thread-safe.
 
+[#examples-threadsafetyclassandmoduleattributes]
 === Examples
 
 [source,ruby]
@@ -32,6 +34,7 @@ class User
 end
 ----
 
+[#configurable-attributes-threadsafetyclassandmoduleattributes]
 === Configurable attributes
 
 |===
@@ -42,6 +45,7 @@ end
 | Boolean
 |===
 
+[#threadsafetyclassinstancevariable]
 == ThreadSafety/ClassInstanceVariable
 
 |===
@@ -56,6 +60,7 @@ end
 
 Avoid class instance variables.
 
+[#examples-threadsafetyclassinstancevariable]
 === Examples
 
 [source,ruby]
@@ -117,6 +122,7 @@ module Example
 end
 ----
 
+[#threadsafetydirchdir]
 == ThreadSafety/DirChdir
 
 |===
@@ -131,6 +137,7 @@ end
 
 Avoid using `Dir.chdir` due to its process-wide effect.
 
+[#examples-threadsafetydirchdir]
 === Examples
 
 [source,ruby]
@@ -142,6 +149,7 @@ Dir.chdir("/var/run")
 FileUtils.chdir("/var/run")
 ----
 
+[#threadsafetymutableclassinstancevariable]
 == ThreadSafety/MutableClassInstanceVariable
 
 |===
@@ -172,8 +180,10 @@ updated with an exhaustive list of all methods that will produce frozen
 objects so there is a decent chance of getting some false positives.
 Luckily, there is no harm in freezing an already frozen object.
 
+[#examples-threadsafetymutableclassinstancevariable]
 === Examples
 
+[#enforcedstyle_-literals-_default_-threadsafetymutableclassinstancevariable]
 ==== EnforcedStyle: literals (default)
 
 [source,ruby]
@@ -201,6 +211,7 @@ class Model
 end
 ----
 
+[#enforcedstyle_-strict-threadsafetymutableclassinstancevariable]
 ==== EnforcedStyle: strict
 
 [source,ruby]
@@ -234,6 +245,7 @@ class Model
 end
 ----
 
+[#configurable-attributes-threadsafetymutableclassinstancevariable]
 === Configurable attributes
 
 |===
@@ -244,6 +256,7 @@ end
 | `literals`, `strict`
 |===
 
+[#threadsafetynewthread]
 == ThreadSafety/NewThread
 
 |===
@@ -260,6 +273,7 @@ Avoid starting new threads.
 
 Let a framework like Sidekiq handle the threads.
 
+[#examples-threadsafetynewthread]
 === Examples
 
 [source,ruby]
@@ -268,6 +282,7 @@ Let a framework like Sidekiq handle the threads.
 Thread.new { do_work }
 ----
 
+[#threadsafetyrackmiddlewareinstancevariable]
 == ThreadSafety/RackMiddlewareInstanceVariable
 
 |===
@@ -286,6 +301,7 @@ Middlewares are initialized once, meaning any instance variables are shared betw
 To avoid potential race conditions, it's recommended to design middlewares to be stateless
 or to implement proper synchronization mechanisms.
 
+[#examples-threadsafetyrackmiddlewareinstancevariable]
 === Examples
 
 [source,ruby]
@@ -329,6 +345,7 @@ class IdentityMiddleware
 end
 ----
 
+[#configurable-attributes-threadsafetyrackmiddlewareinstancevariable]
 === Configurable attributes
 
 |===
diff --git a/gemfiles/rubocop_1.48.gemfile b/gemfiles/rubocop_1.48.gemfile
index 4bf2875..88559b2 100644
--- a/gemfiles/rubocop_1.48.gemfile
+++ b/gemfiles/rubocop_1.48.gemfile
@@ -4,7 +4,17 @@
 
 source 'https://rubygems.org'
 
+gem 'appraisal'
 gem 'base64', '~> 0.1.1'
+gem 'bundler', '>= 1.10', '< 3'
+gem 'prism', '~> 1.2.0'
+gem 'pry'
+gem 'rake', '>= 10.0'
+gem 'rspec', '~> 3.0'
 gem 'rubocop', '~> 1.48.0'
+gem 'rubocop-rake', '~> 0.6.0'
+gem 'rubocop-rspec'
+gem 'simplecov'
+gem 'yard'
 
 gemspec path: '../'
diff --git a/gemfiles/rubocop_1.66.gemfile b/gemfiles/rubocop_1.66.gemfile
index 4da0e62..e0242f5 100644
--- a/gemfiles/rubocop_1.66.gemfile
+++ b/gemfiles/rubocop_1.66.gemfile
@@ -4,6 +4,16 @@
 
 source 'https://rubygems.org'
 
+gem 'appraisal'
+gem 'bundler', '>= 1.10', '< 3'
+gem 'prism', '~> 1.2.0'
+gem 'pry'
+gem 'rake', '>= 10.0'
+gem 'rspec', '~> 3.0'
 gem 'rubocop', '~> 1.66.0'
+gem 'rubocop-rake', '~> 0.6.0'
+gem 'rubocop-rspec'
+gem 'simplecov'
+gem 'yard'
 
 gemspec path: '../'
diff --git a/rubocop-thread_safety.gemspec b/rubocop-thread_safety.gemspec
index 3785ade..6eb33f7 100644
--- a/rubocop-thread_safety.gemspec
+++ b/rubocop-thread_safety.gemspec
@@ -36,15 +36,4 @@ Gem::Specification.new do |spec|
   spec.required_ruby_version = '>= 2.7.0'
 
   spec.add_dependency 'rubocop', '>= 1.48.1'
-
-  spec.add_development_dependency 'appraisal'
-  spec.add_development_dependency 'bundler', '>= 1.10', '< 3'
-  spec.add_development_dependency 'prism'
-  spec.add_development_dependency 'pry' unless ENV['CI']
-  spec.add_development_dependency 'rake', '>= 10.0'
-  spec.add_development_dependency 'rspec', '~> 3.0'
-  spec.add_development_dependency 'rubocop-rake'
-  spec.add_development_dependency 'rubocop-rspec'
-  spec.add_development_dependency 'simplecov'
-  spec.add_development_dependency 'yard'
 end