diff --git a/spec/fixtures/apps/rails-initializer-config/Gemfile b/spec/fixtures/apps/rails-initializer-config/Gemfile
index 71c9f678..4eec5128 100644
--- a/spec/fixtures/apps/rails-initializer-config/Gemfile
+++ b/spec/fixtures/apps/rails-initializer-config/Gemfile
@@ -4,6 +4,7 @@ ruby_version = Gem::Version.new(RUBY_VERSION.dup)
 if ruby_version >= Gem::Version.new('3.4')
     gem 'mutex_m', '0.3.0'
     gem 'base64', '0.2.0'
+    gem 'logger', '1.6.5'
 end
 
 gem 'railties', ruby_version <= Gem::Version.new('2.6') ? '4.2.10' : '~> 6.0.2', require: %w(action_controller rails)
diff --git a/spec/fixtures/apps/rails-invalid-initializer-config/Gemfile b/spec/fixtures/apps/rails-invalid-initializer-config/Gemfile
index ea2524da..4cf18dc4 100644
--- a/spec/fixtures/apps/rails-invalid-initializer-config/Gemfile
+++ b/spec/fixtures/apps/rails-invalid-initializer-config/Gemfile
@@ -5,6 +5,7 @@ ruby_version = Gem::Version.new(RUBY_VERSION.dup)
 if ruby_version >= Gem::Version.new('3.4')
     gem 'mutex_m', '0.3.0'
     gem 'base64', '0.2.0'
+    gem 'logger', '1.6.5'
 end
 
 gem 'railties', ruby_version <= Gem::Version.new('2.6') ? '4.2.10' : '~> 6.0.2', require: %w(action_controller rails)
diff --git a/spec/fixtures/apps/rails-no-config/Gemfile b/spec/fixtures/apps/rails-no-config/Gemfile
index ea2524da..4cf18dc4 100644
--- a/spec/fixtures/apps/rails-no-config/Gemfile
+++ b/spec/fixtures/apps/rails-no-config/Gemfile
@@ -5,6 +5,7 @@ ruby_version = Gem::Version.new(RUBY_VERSION.dup)
 if ruby_version >= Gem::Version.new('3.4')
     gem 'mutex_m', '0.3.0'
     gem 'base64', '0.2.0'
+    gem 'logger', '1.6.5'
 end
 
 gem 'railties', ruby_version <= Gem::Version.new('2.6') ? '4.2.10' : '~> 6.0.2', require: %w(action_controller rails)