diff --git a/tests/test_api.py b/tests/test_api.py
index 47a1c6e39..fa3d80014 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -149,7 +149,7 @@ def test_save(store: Store, n_args: int, n_kwargs: int) -> None:
         assert isinstance(array, Array)
         assert_array_equal(array[:], data)
     else:
-        save(store, *args, **kwargs)
+        save(store, *args, **kwargs)  # type: ignore[arg-type]
         group = open(store)
         assert isinstance(group, Group)
         for array in group.array_values():
@@ -1023,10 +1023,10 @@ async def test_metadata_validation_error() -> None:
         MetadataValidationError,
         match="Invalid value for 'zarr_format'. Expected '2, 3, or None'. Got '3.0'.",
     ):
-        await zarr.api.asynchronous.open_group(zarr_format="3.0")
+        await zarr.api.asynchronous.open_group(zarr_format="3.0")  # type: ignore[arg-type]
 
     with pytest.raises(
         MetadataValidationError,
         match="Invalid value for 'zarr_format'. Expected '2, 3, or None'. Got '3.0'.",
     ):
-        await zarr.api.asynchronous.open_array(shape=(1,), zarr_format="3.0")
+        await zarr.api.asynchronous.open_array(shape=(1,), zarr_format="3.0")  # type: ignore[arg-type]