diff --git a/backend/apps/webui/routers/chats.py b/backend/apps/webui/routers/chats.py
index 49df3d284..9d1cceaa1 100644
--- a/backend/apps/webui/routers/chats.py
+++ b/backend/apps/webui/routers/chats.py
@@ -161,7 +161,7 @@ async def get_archived_session_user_chat_list(
 ############################
 
 
-@router.post("/archive/all", response_model=List[ChatTitleIdResponse])
+@router.post("/archive/all", response_model=bool)
 async def archive_all_chats(user=Depends(get_current_user)):
     return Chats.archive_all_chats_by_user_id(user.id)