diff --git a/docs_src/dependencies/tutorial012_an_py39.py b/docs_src/dependencies/tutorial012_an_py39.py
index 63e93132d..6503591fc 100644
--- a/docs_src/dependencies/tutorial012_an_py39.py
+++ b/docs_src/dependencies/tutorial012_an_py39.py
@@ -1,6 +1,7 @@
-from fastapi import Depends, FastAPI, Header, HTTPException
 from typing import Annotated
 
+from fastapi import Depends, FastAPI, Header, HTTPException
+
 
 async def verify_token(x_token: Annotated[str, Header()]):
     if x_token != "fake-super-secret-token":