diff --git a/run_tests.py b/run_tests.py
index 8e15e8b..057d356 100644
--- a/run_tests.py
+++ b/run_tests.py
@@ -187,6 +187,7 @@ def bla(list, /):
     """
     check_code(source, 'A002')
 
+
 @pytest.mark.skipif(
     sys.version_info < (3, 8),
     reason='This syntax is only valid in Python 3.8+',
@@ -197,6 +198,7 @@ def test_lambda_posonly_argument_message():
     """
     check_code(source, 'A006')
 
+
 def test_no_error():
     source = """def bla(first):\n    b = 4"""
     check_code(source)