diff --git a/backend/open_webui/socket/utils.py b/backend/open_webui/socket/utils.py
index 5739a8027a..ccbe333656 100644
--- a/backend/open_webui/socket/utils.py
+++ b/backend/open_webui/socket/utils.py
@@ -190,7 +190,9 @@ class YdocManager:
 
     async def remove_user_from_all_documents(self, user_id: str):
         if self._redis:
-            keys = await self._redis.keys(f"{self._redis_key_prefix}:*")
+            keys = []
+            async for key in self._redis.scan_iter(match=f"{self._redis_key_prefix}:*", count=100):
+                keys.append(key)
             for key in keys:
                 if key.endswith(":users"):
                     await self._redis.srem(key, user_id)