diff --git a/backend/open_webui/internal/db.py b/backend/open_webui/internal/db.py
index abf54c185..3818543fc 100644
--- a/backend/open_webui/internal/db.py
+++ b/backend/open_webui/internal/db.py
@@ -230,7 +230,6 @@ else:
                 pool_timeout=DATABASE_POOL_TIMEOUT,
                 pool_recycle=DATABASE_POOL_RECYCLE,
                 pool_pre_ping=True,
-                poolclass=QueuePool,
             )
         else:
             async_engine = create_async_engine(