diff --git a/custom_components/upnp_availability/__init__.py b/custom_components/upnp_availability/__init__.py
index e36c362..65c1aa5 100644
--- a/custom_components/upnp_availability/__init__.py
+++ b/custom_components/upnp_availability/__init__.py
@@ -1,4 +1,5 @@
 """The UPnP Availability integration."""
+
 import asyncio
 import logging
 
diff --git a/custom_components/upnp_availability/binary_sensor.py b/custom_components/upnp_availability/binary_sensor.py
index 2bd19a8..b62deab 100644
--- a/custom_components/upnp_availability/binary_sensor.py
+++ b/custom_components/upnp_availability/binary_sensor.py
@@ -2,6 +2,7 @@
 This platform provides a binary sensor to track the availability
  of UPnP devices, based on ssdp:alive and ssdp:byebye notifications.
 """
+
 import asyncio
 import logging
 from collections import defaultdict
diff --git a/custom_components/upnp_availability/config_flow.py b/custom_components/upnp_availability/config_flow.py
index e9a19ec..fc72d24 100644
--- a/custom_components/upnp_availability/config_flow.py
+++ b/custom_components/upnp_availability/config_flow.py
@@ -1,4 +1,5 @@
 """Config flow for UPnP Availability."""
+
 import logging
 
 from homeassistant.helpers import config_entry_flow