diff --git a/src/oidc-test/main.py b/src/oidc-test/main.py
index e0f999c..a53083a 100644
--- a/src/oidc-test/main.py
+++ b/src/oidc-test/main.py
@@ -13,6 +13,7 @@ from fastapi.security import (
     OAuth2AuthorizationCodeBearer,
 )
 from starlette.middleware.sessions import SessionMiddleware
+from authlib.integrations.starlette_client.apps import StarletteOAuth2App
 from authlib.integrations.starlette_client import OAuth, OAuthError
 from pydantic import BaseModel
 from pydantic_settings import (
@@ -174,7 +175,7 @@ async def current_user(request: Request, token: str | None = Depends(fastapi_oau
 async def login(request: Request, provider: str) -> RedirectResponse:
     redirect_uri = request.url_for("auth", provider=provider)
     try:
-        provider_ = getattr(authlib_oauth, provider)
+        provider_: StarletteOAuth2App = getattr(authlib_oauth, provider)
     except AttributeError:
         raise HTTPException(500, "")
     try:
@@ -186,7 +187,7 @@ async def login(request: Request, provider: str) -> RedirectResponse:
 @app.get("/auth/{provider}")
 async def auth(request: Request, provider: str) -> RedirectResponse:
     try:
-        provider_ = getattr(authlib_oauth, provider)
+        provider_: StarletteOAuth2App = getattr(authlib_oauth, provider)
     except AttributeError:
         raise HTTPException(500, "")
     try: