diff --git a/python_modules/libraries/dagster-fivetran/dagster_fivetran_tests/experimental/conftest.py b/python_modules/libraries/dagster-fivetran/dagster_fivetran_tests/experimental/conftest.py
index c758b9ade6f90..587537370e0cd 100644
--- a/python_modules/libraries/dagster-fivetran/dagster_fivetran_tests/experimental/conftest.py
+++ b/python_modules/libraries/dagster-fivetran/dagster_fivetran_tests/experimental/conftest.py
@@ -442,7 +442,7 @@ def all_api_mocks_fixture(
     destination_id: str,
     group_id: str,
     fetch_workspace_data_api_mocks: responses.RequestsMock,
-) -> responses.RequestsMock:
+) -> Iterator[responses.RequestsMock]:
     fetch_workspace_data_api_mocks.add(
         method=responses.GET,
         url=f"{FIVETRAN_API_BASE}/{FIVETRAN_API_VERSION}/{FIVETRAN_CONNECTOR_ENDPOINT}/{connector_id}",