diff --git a/api/configs/app_config.py b/api/configs/app_config.py
index 4f77b25240..29828a3be0 100644
--- a/api/configs/app_config.py
+++ b/api/configs/app_config.py
@@ -29,6 +29,7 @@ class RemoteSettingsSourceFactory(PydanticBaseSettingsSource):
     def get_field_value(self, field: FieldInfo, field_name: str) -> tuple[Any, str, bool]:
         raise NotImplementedError
 
+    @override
     def __call__(self) -> dict[str, Any]:
         current_state = self.current_state
         remote_source_name = current_state.get("REMOTE_SETTINGS_SOURCE_NAME")