diff --git a/api/configs/packaging/pyproject.py b/api/configs/packaging/pyproject.py
index 854fbe7dcd..e9fc0dfb47 100644
--- a/api/configs/packaging/pyproject.py
+++ b/api/configs/packaging/pyproject.py
@@ -14,14 +14,3 @@ class PyProjectTomlConfig(BaseSettings):
     """
     # [project] section
     project: PyProjectConfig
-
-    @classmethod
-    def settings_customise_sources(
-        cls,
-        settings_cls: type[BaseSettings],
-        init_settings: PydanticBaseSettingsSource,
-        env_settings: PydanticBaseSettingsSource,
-        dotenv_settings: PydanticBaseSettingsSource,
-        file_secret_settings: PydanticBaseSettingsSource,
-    ) -> tuple[PydanticBaseSettingsSource, ...]:
-        return (TomlConfigSettingsSource(settings_cls, toml_file="pyproject.toml"),)