diff --git a/python/heater/main.py b/python/heater/main.py
index ec3e4b4..d102797 100644
--- a/python/heater/main.py
+++ b/python/heater/main.py
@@ -1,4 +1,5 @@
 """FastAPI heater control service."""
+
 from __future__ import annotations
 
 import logging