diff --git a/tests/test_store/test_fsspec.py b/tests/test_store/test_fsspec.py
index cd5b034d86..2f6d6dd3f0 100644
--- a/tests/test_store/test_fsspec.py
+++ b/tests/test_store/test_fsspec.py
@@ -27,7 +27,9 @@
     ),
     # TODO: fix these warnings
     pytest.mark.filterwarnings("ignore:Unclosed client session:ResourceWarning"),
-    pytest.mark.filterwarnings("ignore:coroutine 'ClientCreatorContext.__aexit__' was never awaited:RuntimeWarning")
+    pytest.mark.filterwarnings(
+        "ignore:coroutine 'ClientCreatorContext.__aexit__' was never awaited:RuntimeWarning"
+    ),
 ]
 
 fsspec = pytest.importorskip("fsspec")
diff --git a/tests/test_store/test_stateful.py b/tests/test_store/test_stateful.py
index 0d297a8460..f332e0dadc 100644
--- a/tests/test_store/test_stateful.py
+++ b/tests/test_store/test_stateful.py
@@ -12,6 +12,7 @@
 # TODO: work out where this warning is coming from and fix
 pytestmark = [pytest.mark.filterwarnings("ignore:Unclosed client session:ResourceWarning")]
 
+
 def test_zarr_hierarchy(sync_store: Store):
     def mk_test_instance_sync() -> ZarrHierarchyStateMachine:
         return ZarrHierarchyStateMachine(sync_store)