diff --git a/requirements-check.txt b/requirements-check.txt
index 36d44a2c..da416e9d 100644
--- a/requirements-check.txt
+++ b/requirements-check.txt
@@ -1,5 +1,5 @@
 ruff==0.2.0
-black==23.12.1
+black==24.1.1
 isort==5.13.2
 mypy==1.8.0
 types-tzlocal
diff --git a/src/autosuspend/checks/linux.py b/src/autosuspend/checks/linux.py
index 9b99913c..6feb0bff 100644
--- a/src/autosuspend/checks/linux.py
+++ b/src/autosuspend/checks/linux.py
@@ -1,6 +1,5 @@
 """Contains checks directly using the Linux operating system concepts."""
 
-
 from collections.abc import Iterable
 import configparser
 from contextlib import suppress
diff --git a/tests/test_checks_xorg.py b/tests/test_checks_xorg.py
index 6b7ef7a5..f923cb81 100644
--- a/tests/test_checks_xorg.py
+++ b/tests/test_checks_xorg.py
@@ -229,9 +229,9 @@ def test_create_unknown_method(self) -> None:
 
     def test_list_sessions_logind_dbus_error(self, mocker: MockerFixture) -> None:
         check = XIdleTime.create("name", config_section())
-        mocker.patch.object(
-            check, "_provide_sessions"
-        ).side_effect = LogindDBusException()
+        mocker.patch.object(check, "_provide_sessions").side_effect = (
+            LogindDBusException()
+        )
 
         with pytest.raises(TemporaryCheckError):
             check._safe_provide_sessions()