diff --git a/src/xiaomi_ble/__init__.py b/src/xiaomi_ble/__init__.py
index 94543ac..52c28e9 100644
--- a/src/xiaomi_ble/__init__.py
+++ b/src/xiaomi_ble/__init__.py
@@ -5,6 +5,7 @@
 
 MIT License applies.
 """
+
 from __future__ import annotations
 
 from sensor_state_data import (
diff --git a/src/xiaomi_ble/const.py b/src/xiaomi_ble/const.py
index 00696d9..644e843 100644
--- a/src/xiaomi_ble/const.py
+++ b/src/xiaomi_ble/const.py
@@ -1,4 +1,5 @@
 """Constants for Xiaomi BLE advertisements."""
+
 from enum import Enum
 
 from sensor_state_data import BaseDeviceClass
diff --git a/src/xiaomi_ble/events.py b/src/xiaomi_ble/events.py
index 7cfae84..c59d6d3 100644
--- a/src/xiaomi_ble/events.py
+++ b/src/xiaomi_ble/events.py
@@ -1,4 +1,5 @@
 """Event constants for xiaomi-ble."""
+
 from __future__ import annotations
 
 from sensor_state_data.enum import StrEnum
diff --git a/src/xiaomi_ble/locks.py b/src/xiaomi_ble/locks.py
index 8410a27..283bfcc 100755
--- a/src/xiaomi_ble/locks.py
+++ b/src/xiaomi_ble/locks.py
@@ -1,4 +1,5 @@
 """Constants for Xiaomi Locks."""
+
 from enum import Enum
 
 
diff --git a/src/xiaomi_ble/parser.py b/src/xiaomi_ble/parser.py
index b764d23..df08e52 100644
--- a/src/xiaomi_ble/parser.py
+++ b/src/xiaomi_ble/parser.py
@@ -3,6 +3,7 @@
 https://github.com/Ernst79/bleparser/blob/c42ae922e1abed2720c7fac993777e1bd59c0c93/package/bleparser/xiaomi.py
 MIT License applies.
 """
+
 from __future__ import annotations
 
 import datetime
diff --git a/tests/test_parser.py b/tests/test_parser.py
index 05eb95f..4bf8110 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -1,4 +1,5 @@
 """The tests for the Xiaomi ble parser."""
+
 import logging
 from unittest.mock import patch