diff --git a/fgpyo/util/tests/test_types.py b/fgpyo/util/tests/test_types.py
index c9c8eaac..c49d2d78 100644
--- a/fgpyo/util/tests/test_types.py
+++ b/fgpyo/util/tests/test_types.py
@@ -4,7 +4,8 @@
 
 from fgpyo.util import types
 
+
 def test_is_listlike() -> None:
     assert types.is_list_like(List[str])
     assert types.is_list_like(Iterable[str])
-    assert types.is_list_like(Sequence[str])
\ No newline at end of file
+    assert types.is_list_like(Sequence[str])