diff --git a/ee/spec/workers/security/attributes/cleanup_schedule_worker_spec.rb b/ee/spec/workers/security/attributes/cleanup_schedule_worker_spec.rb
index a1811ae6e0f730005482fadb07125fc810ce13c8..903e45ea8b30e713bed5eb0e31f8d32d0803e95c 100644
--- a/ee/spec/workers/security/attributes/cleanup_schedule_worker_spec.rb
+++ b/ee/spec/workers/security/attributes/cleanup_schedule_worker_spec.rb
@@ -45,7 +45,8 @@
         let_it_be(:projects_same_ns) { create_list(:project, 2, group: moved_group) }
         let(:project_ids_same_ns) { projects_same_ns.pluck(:id) }
 
-        it 'schedules workers with nil new_root_namespace_id to update traversal_ids only' do
+        it 'schedules workers with nil new_root_namespace_id to update traversal_ids only',
+          quarantine: 'https://gitlab.com/gitlab-org/quality/test-failure-issues/-/issues/8478' do
           handle_event
 
           expect(cleanup_batch_worker).to have_received(:perform_async).with(project_ids_same_ns, nil)