diff --git a/gemfiles/Gemfile_rails_6.1.rb b/gemfiles/Gemfile_rails_6.1.rb
index 7ebaedb..e33d7b1 100644
--- a/gemfiles/Gemfile_rails_6.1.rb
+++ b/gemfiles/Gemfile_rails_6.1.rb
@@ -1,4 +1,4 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 gemspec path: '..'
 
diff --git a/gemfiles/Gemfile_rails_7.0.rb b/gemfiles/Gemfile_rails_7.0.rb
index ae5e2a3..2ebe1e4 100644
--- a/gemfiles/Gemfile_rails_7.0.rb
+++ b/gemfiles/Gemfile_rails_7.0.rb
@@ -1,6 +1,6 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 gemspec path: '..'
 
 gem 'rails', '~> 7.0.0'
-gem "sqlite3", "~> 1.4"
+gem 'sqlite3', '~> 1.4'
diff --git a/gemfiles/Gemfile_rails_7.1.rb b/gemfiles/Gemfile_rails_7.1.rb
index 93beebb..7fdd267 100644
--- a/gemfiles/Gemfile_rails_7.1.rb
+++ b/gemfiles/Gemfile_rails_7.1.rb
@@ -1,6 +1,6 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 gemspec path: '..'
 
 gem 'rails', '~> 7.1.0'
-gem "sqlite3", "~> 1.4"
+gem 'sqlite3', '~> 1.4'