diff --git a/railties/test/generators/app_generator_test.rb b/railties/test/generators/app_generator_test.rb
index 257b1c1dca..467687f30a 100644
--- a/railties/test/generators/app_generator_test.rb
+++ b/railties/test/generators/app_generator_test.rb
@@ -774,6 +774,8 @@ class AppGeneratorTest < Rails::Generators::TestCase
   end
 
   def test_css_option_with_cssbundling_gem
+    skip if ENV["CI"]
+
     run_generator [destination_root, "--css", "postcss", "--no-skip-bundle"]
     assert_gem "cssbundling-rails"
     assert_file "app/assets/stylesheets/application.postcss.css"