diff --git a/tests/conftest.py b/tests/conftest.py
index 88ee7ea..65c4ac7 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -107,7 +107,7 @@ def brain_region_json_path():
     return br_path
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def fake_llm_with_tools(brain_region_json_path):
     class FakeFuntionChatModel(GenericFakeChatModel):
         def bind_tools(self, functions: list):