diff --git a/app/ocpp_proto/chargepoint.py b/app/ocpp_proto/chargepoint.py
index 0f679df..bb9042d 100644
--- a/app/ocpp_proto/chargepoint.py
+++ b/app/ocpp_proto/chargepoint.py
@@ -237,3 +237,7 @@ class ChargePoint(cp):
     @on(Action.MeterValues)
     async def on_meter_values(self, **kwargs):
         return call_result.MeterValuesPayload()
+    
+    @on(Action.SecurityEventNotification)
+    async def on_security_event_notification(self, **kwargs):
+        return call_result.SecurityEventNotificationPayload()