diff --git a/ee/spec/features/merge_trains/user_adds_merge_request_to_merge_train_spec.rb b/ee/spec/features/merge_trains/user_adds_merge_request_to_merge_train_spec.rb
index 547c367a49a878724cc9917cbed0626badc24a67..098969be677afdf23dbdfedbbfa995e794fe3d15 100644
--- a/ee/spec/features/merge_trains/user_adds_merge_request_to_merge_train_spec.rb
+++ b/ee/spec/features/merge_trains/user_adds_merge_request_to_merge_train_spec.rb
@@ -78,7 +78,7 @@
           merge_request.merge_train_car.pipeline.builds.map(&:success!)
         end
 
-        it 'displays the expected content', :js do
+        it 'displays the expected content', :js, quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/508571' do
           expect(page).to have_selector('[data-testid="pipeline-mini-graph-dropdown"]')
 
           find_by_testid('pipeline-mini-graph-dropdown-toggle').click