diff --git a/setup.py b/setup.py
index b90df8f..23f4e3a 100644
--- a/setup.py
+++ b/setup.py
@@ -6,6 +6,7 @@
     PyScaffold helps you to put up the scaffold of your new Python project.
     Learn more under: https://pyscaffold.org/
 """
+
 from setuptools import setup
 
 if __name__ == "__main__":
diff --git a/src/pyscaffoldext/markdown/extension.py b/src/pyscaffoldext/markdown/extension.py
index 116d708..900e674 100644
--- a/src/pyscaffoldext/markdown/extension.py
+++ b/src/pyscaffoldext/markdown/extension.py
@@ -1,4 +1,5 @@
 """Extension that replaces reStructuredText by Markdown"""
+
 from functools import partial, reduce
 from textwrap import dedent
 from typing import List
diff --git a/tests/conftest.py b/tests/conftest.py
index ea06db9..5e2ee5c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -2,6 +2,7 @@
 A nice option is to put your ``autouse`` fixtures here.
 Functions that can be imported and re-used are more suitable for the ``helpers`` file.
 """
+
 import os
 from pathlib import Path
 from tempfile import mkdtemp