diff --git a/app/config.py b/app/config.py
index db41121..124623b 100644
--- a/app/config.py
+++ b/app/config.py
@@ -1,5 +1,6 @@
 from pydantic_settings import BaseSettings
 from functools import lru_cache
+from typing import Optional
 
 
 class Settings(BaseSettings):