diff --git a/src/mepo/utilities/chdir.py b/src/mepo/utilities/chdir.py
index a1ab48a..1b8922d 100644
--- a/src/mepo/utilities/chdir.py
+++ b/src/mepo/utilities/chdir.py
@@ -1,4 +1,5 @@
 """contextlib.chdir was introduced in Python 3.11"""
+
 import os
 from contextlib import contextmanager
 
diff --git a/tests/test_mepo_commands.py b/tests/test_mepo_commands.py
index 4721389..bb5b8ad 100644
--- a/tests/test_mepo_commands.py
+++ b/tests/test_mepo_commands.py
@@ -27,6 +27,7 @@
 import mepo.command.diff as mepo_diff
 import mepo.command.whereis as mepo_whereis
 import mepo.command.reset as mepo_reset
+
 # Import commands with dash in the name
 mepo_restore_state = importlib.import_module("mepo.command.restore-state")
 mepo_checkout_if_exists = importlib.import_module("mepo.command.checkout-if-exists")
@@ -34,6 +35,7 @@
 
 TEST_DIR = os.path.dirname(os.path.realpath(__file__))
 
+
 class TestMepoCommands(unittest.TestCase):
 
     @classmethod