diff --git a/backend/app/config.py b/backend/app/config.py
index 6477218..8881de8 100644
--- a/backend/app/config.py
+++ b/backend/app/config.py
@@ -220,6 +220,7 @@ class Settings(BaseSettings):
     class Config:
         env_file = find_env_file()
         case_sensitive = False
+        extra = "ignore"
 
 
 @lru_cache()