diff --git a/docs/conf.py b/docs/conf.py
index 83dd985..5a5ea18 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -2,6 +2,7 @@
 
 https://www.sphinx-doc.org/en/master/usage/configuration.html
 """
+
 from mutt_language_server import __version__ as version  # type: ignore
 from mutt_language_server._metainfo import (  # type: ignore
     author,
diff --git a/src/mutt_language_server/__init__.py b/src/mutt_language_server/__init__.py
index 9b415f3..821dc74 100644
--- a/src/mutt_language_server/__init__.py
+++ b/src/mutt_language_server/__init__.py
@@ -1,6 +1,7 @@
 r"""Provide ``__version__`` for
 `importlib.metadata.version() <https://docs.python.org/3/library/importlib.metadata.html#distribution-versions>`_.
 """
+
 try:
     from ._version import __version__, __version_tuple__  # type: ignore
 except ImportError:  # for setuptools-generate
diff --git a/src/mutt_language_server/__main__.py b/src/mutt_language_server/__main__.py
index e5a55f5..18c8c68 100644
--- a/src/mutt_language_server/__main__.py
+++ b/src/mutt_language_server/__main__.py
@@ -1,6 +1,7 @@
 r"""This module can be called by
 `python -m <https://docs.python.org/3/library/__main__.html>`_.
 """
+
 import logging
 from argparse import ArgumentParser, RawDescriptionHelpFormatter
 from contextlib import suppress
diff --git a/src/mutt_language_server/misc/__init__.py b/src/mutt_language_server/misc/__init__.py
index 3280410..343b47c 100644
--- a/src/mutt_language_server/misc/__init__.py
+++ b/src/mutt_language_server/misc/__init__.py
@@ -1,6 +1,7 @@
 r"""Misc
 ========
 """
+
 import re
 from typing import Any
 
diff --git a/src/mutt_language_server/server.py b/src/mutt_language_server/server.py
index 308ed9f..f224d63 100644
--- a/src/mutt_language_server/server.py
+++ b/src/mutt_language_server/server.py
@@ -1,6 +1,7 @@
 r"""Server
 ==========
 """
+
 import os
 import re
 from typing import Any
diff --git a/src/mutt_language_server/utils.py b/src/mutt_language_server/utils.py
index 51201ad..9f6a6ae 100644
--- a/src/mutt_language_server/utils.py
+++ b/src/mutt_language_server/utils.py
@@ -1,6 +1,7 @@
 r"""Utils
 =========
 """
+
 import json
 import os
 from typing import Any
diff --git a/tests/test_utils.py b/tests/test_utils.py
index d995cc9..6f1eee1 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -1,4 +1,5 @@
 r"""Test utils."""
+
 from mutt_language_server.utils import get_schema