diff --git a/llama_cpp/server/app.py b/llama_cpp/server/app.py
index b6db453b8..532772455 100644
--- a/llama_cpp/server/app.py
+++ b/llama_cpp/server/app.py
@@ -5,7 +5,7 @@
 import typing
 import contextlib
 
-from anyio import Lock
+from asyncio import Lock
 from functools import partial
 from typing import Iterator, List, Optional, Union, Dict