diff --git a/nanobot/heartbeat/service.py b/nanobot/heartbeat/service.py
index 3e40f2f..cb1a1c7 100644
--- a/nanobot/heartbeat/service.py
+++ b/nanobot/heartbeat/service.py
@@ -36,7 +36,6 @@ def _is_heartbeat_empty(content: str | None) -> bool:
     return True
 
 
-
 class HeartbeatService:
     """
     Periodic heartbeat service that wakes the agent to check for tasks.