diff --git a/dandi/tests/test_upload.py b/dandi/tests/test_upload.py
index 1bd372414..ac1773fb4 100644
--- a/dandi/tests/test_upload.py
+++ b/dandi/tests/test_upload.py
@@ -252,7 +252,7 @@ def test_upload_bids_non_nwb_file(bids_dandiset: SampleDandiset) -> None:
 
 
 @sweep_embargo
-def test_upload_sync_zarr(mocker, zarr_dandiset: SampleDandiset, embargo: bool) -> None:
+def test_upload_sync_zarr(mocker: MockerFixture, zarr_dandiset: SampleDandiset, embargo: bool) -> None:
     assert zarr_dandiset.dandiset.embargo_status == (
         EmbargoStatus.EMBARGOED if embargo else EmbargoStatus.OPEN
     )