diff --git a/resolvers/load.py b/resolvers/load.py
index acbd03d..d96f95e 100644
--- a/resolvers/load.py
+++ b/resolvers/load.py
@@ -8,8 +8,6 @@ from .chats import create_chat
 from .unread import get_unread_counter
 import asyncio
 
-lock = asyncio.Lock()
-
 
 # NOTE: not an API handler
 async def load_messages(chat_id: str, limit: int = 5, offset: int = 0, ids=None):
@@ -52,6 +50,7 @@ async def load_chats(_, info, limit: int = 50, offset: int = 0):
     cids = cids[offset:(offset + limit)]
     members_online = (await redis.execute("SMEMBERS", "authors-online")) or []
     chats = []
+    lock = asyncio.Lock()
     if len(cids) == 0:
         print(f"[resolvers.load] no chats for user with id={author_id}, create one with Discours (id=2)")
         r = await create_chat(None, info, members=[2])  # member with id = 2 is discours