diff --git a/tests/unit/test__utils.py b/tests/unit/test__utils.py
index 66302d04f..b895fc573 100644
--- a/tests/unit/test__utils.py
+++ b/tests/unit/test__utils.py
@@ -105,6 +105,7 @@ def test__is_datetime_type_with_datetime_series():
     # Assert
     assert is_datetime
 
+
 def test__is_datetime_type_with_period():
     """Test the ``_is_datetime_type`` function when a period series is passed.