diff --git a/.all-contributorsrc b/.all-contributorsrc
index 2e0bd9a..e125680 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -3,9 +3,7 @@
   "projectOwner": "bluetooth-devices",
   "repoType": "github",
   "repoHost": "https://github.com",
-  "files": [
-    "README.md"
-  ],
+  "files": ["README.md"],
   "imageSize": 80,
   "commit": true,
   "commitConvention": "angular",
diff --git a/src/led_ble/util.py b/src/led_ble/util.py
index b92c1d7..6b0d28b 100644
--- a/src/led_ble/util.py
+++ b/src/led_ble/util.py
@@ -1,4 +1,5 @@
 """Utils."""
+
 from __future__ import annotations
 
 import sys