diff --git a/Gemfile b/Gemfile
index e8bf4fe..a9cfb6d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,4 +5,18 @@ source "https://rubygems.org"
 # Dependencies are specified in publify_amazon_sidebar.gemspec.
 gemspec
 
+group :development, :test do
+  gem "appraisal", "~> 2.3"
+  gem "rspec-rails", "~> 7.1"
+  gem "rubocop", "~> 1.91"
+  gem "rubocop-capybara", "~> 3.0"
+  gem "rubocop-factory_bot", "~> 2.28"
+  gem "rubocop-performance", "~> 1.26"
+  gem "rubocop-rails", "~> 2.36"
+  gem "rubocop-rspec", "~> 3.10"
+  gem "rubocop-rspec_rails", "~> 2.32"
+  gem "simplecov", "~> 1.2"
+  gem "sqlite3", "~> 2.9"
+end
+
 gem "publify_core", git: "https://github.com/publify/publify_core.git"
diff --git a/gemfiles/rails_71.gemfile b/gemfiles/rails_71.gemfile
index 5e48fb7..d4f7ba3 100644
--- a/gemfiles/rails_71.gemfile
+++ b/gemfiles/rails_71.gemfile
@@ -7,4 +7,18 @@ source "https://rubygems.org"
 gem "publify_core", git: "https://github.com/publify/publify_core.git"
 gem "rails", "~> 7.1.0"
 
+group :development, :test do
+  gem "appraisal", "~> 2.3"
+  gem "rspec-rails", "~> 7.1"
+  gem "rubocop", "~> 1.91.0"
+  gem "rubocop-capybara", "~> 3.0.0"
+  gem "rubocop-factory_bot", "~> 2.28.0"
+  gem "rubocop-performance", "~> 1.26.1"
+  gem "rubocop-rails", "~> 2.36.0"
+  gem "rubocop-rspec", "~> 3.10.2"
+  gem "rubocop-rspec_rails", "~> 2.32.0"
+  gem "simplecov", "~> 1.2.0"
+  gem "sqlite3", "~> 2.9"
+end
+
 gemspec path: "../"
diff --git a/gemfiles/rails_72.gemfile b/gemfiles/rails_72.gemfile
index 34b40fc..25b6755 100644
--- a/gemfiles/rails_72.gemfile
+++ b/gemfiles/rails_72.gemfile
@@ -7,4 +7,18 @@ source "https://rubygems.org"
 gem "publify_core", git: "https://github.com/publify/publify_core.git"
 gem "rails", "~> 7.2.0"
 
+group :development, :test do
+  gem "appraisal", "~> 2.3"
+  gem "rspec-rails", "~> 7.1"
+  gem "rubocop", "~> 1.91.0"
+  gem "rubocop-capybara", "~> 3.0.0"
+  gem "rubocop-factory_bot", "~> 2.28.0"
+  gem "rubocop-performance", "~> 1.26.1"
+  gem "rubocop-rails", "~> 2.36.0"
+  gem "rubocop-rspec", "~> 3.10.2"
+  gem "rubocop-rspec_rails", "~> 2.32.0"
+  gem "simplecov", "~> 1.2.0"
+  gem "sqlite3", "~> 2.9"
+end
+
 gemspec path: "../"
diff --git a/publify_textfilter_code.gemspec b/publify_textfilter_code.gemspec
index b9d0d61..072dd1b 100644
--- a/publify_textfilter_code.gemspec
+++ b/publify_textfilter_code.gemspec
@@ -22,16 +22,5 @@ Gem::Specification.new do |s|
   s.add_dependency "htmlentities", "~> 4.3"
   s.add_dependency "publify_core", "~> 10.0.0"
 
-  s.add_development_dependency "appraisal", "~> 2.3"
-  s.add_development_dependency "rspec-rails", "~> 7.1"
-  s.add_development_dependency "rubocop", "~> 1.91.0"
-  s.add_development_dependency "rubocop-capybara", "~> 3.0.0"
-  s.add_development_dependency "rubocop-factory_bot", "~> 2.28.0"
-  s.add_development_dependency "rubocop-performance", "~> 1.26.1"
-  s.add_development_dependency "rubocop-rails", "~> 2.36.0"
-  s.add_development_dependency "rubocop-rspec", "~> 3.10.2"
-  s.add_development_dependency "rubocop-rspec_rails", "~> 2.32.0"
-  s.add_development_dependency "simplecov", "~> 1.2.0"
-  s.add_development_dependency "sqlite3", "~> 2.9"
   s.metadata["rubygems_mfa_required"] = "true"
 end