diff --git a/api/services/workflow_comment_service.py b/api/services/workflow_comment_service.py
index 9bb9a90fca..ac20a87c31 100644
--- a/api/services/workflow_comment_service.py
+++ b/api/services/workflow_comment_service.py
@@ -1,6 +1,5 @@
 import logging
 from collections.abc import Sequence
-from typing import Optional
 
 from sqlalchemy import desc, select
 from sqlalchemy.orm import Session, selectinload