diff --git a/api/tasks/remove_app_and_related_data_task.py b/api/tasks/remove_app_and_related_data_task.py
index c6b67a4940..f61ff5fb30 100644
--- a/api/tasks/remove_app_and_related_data_task.py
+++ b/api/tasks/remove_app_and_related_data_task.py
@@ -192,7 +192,7 @@ def _delete_app_workflow_runs(tenant_id: str, app_id: str):
 
 def _delete_app_workflow_node_executions(tenant_id: str, app_id: str):
     # Get app's owner
-    with Session(db.engine) as session:
+    with Session(db.engine, expire_on_commit=False) as session:
         stmt = select(Account).where(Account.id == App.owner_id).where(App.id == app_id)
         user = session.scalar(stmt)