diff --git a/fastapi_security/api.py b/fastapi_security/api.py
index ef63c2f..0fa9d52 100644
--- a/fastapi_security/api.py
+++ b/fastapi_security/api.py
@@ -220,7 +220,7 @@ async def dependency(
             raise HTTPException(
                 status_code=401,
                 detail="Could not validate credentials",
-                headers=Headers(
+                headers=Headers(  # type: ignore[arg-type]
                     raw=[(b"WWW-Authenticate", o.encode("latin-1")) for o in options],
                 ),
             )