diff --git a/services/web/server/src/simcore_service_webserver/studies_dispatcher/_users.py b/services/web/server/src/simcore_service_webserver/studies_dispatcher/_users.py
index da1b23727052..955978bb27b9 100644
--- a/services/web/server/src/simcore_service_webserver/studies_dispatcher/_users.py
+++ b/services/web/server/src/simcore_service_webserver/studies_dispatcher/_users.py
@@ -13,9 +13,9 @@
 
 import redis.asyncio as aioredis
 from aiohttp import web
-from aioredis.exceptions import LockNotOwnedError
 from models_library.emails import LowerCaseEmailStr
 from pydantic import BaseModel, parse_obj_as
+from redis.exceptions import LockNotOwnedError
 from servicelib.aiohttp.application_keys import APP_FIRE_AND_FORGET_TASKS_KEY
 from servicelib.logging_utils import log_decorator
 from servicelib.utils import fire_and_forget_task