diff --git a/spec/features/issues/user_comments_on_issue_spec.rb b/spec/features/issues/user_comments_on_issue_spec.rb
index d27f3ffebe6f13d162b964f2f17efbee3c902748..b6e9754485ebebdecd9d18ea5318078c968b6dd1 100644
--- a/spec/features/issues/user_comments_on_issue_spec.rb
+++ b/spec/features/issues/user_comments_on_issue_spec.rb
@@ -35,7 +35,7 @@
 
     # do not test quick actions here since guest users don't have permission
     # to execute all quick actions
-    it_behaves_like 'edits content using the content editor', { with_quick_actions: false }
+    it_behaves_like 'edits content using the content editor', { with_quick_actions: false }, quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/439368'
 
     it "adds comment with code block" do
       code_block_content = "Command [1]: /usr/local/bin/git , see [text](doc/text)"
diff --git a/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb b/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb
index 09444084eb9ac696b5f08ec062e07adb09f241ee..12dc3cfcc6ea9b8bb0c86b6bf7a6a6c8c36a9d53 100644
--- a/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb
+++ b/spec/support/shared_examples/features/wiki/user_updates_wiki_page_shared_examples.rb
@@ -152,7 +152,7 @@
     it_behaves_like 'edits content using the content editor', {
       with_expanded_references: false,
       with_quick_actions: false
-    }
+    }, quarantine: 'https://gitlab.com/gitlab-org/gitlab/-/issues/439368'
     it_behaves_like 'inserts diagrams.net diagram using the content editor'
     it_behaves_like 'autocompletes items'
   end