diff --git a/sensor.py b/sensor.py
index 2a898c2b7b1d6fac55fb0d24f94af8ed8e6ffc43..947692bcaf9462bd0373ad693fa6d443bfa3c1e4 100644
--- a/sensor.py
+++ b/sensor.py
@@ -86,7 +86,7 @@ class AlertaSensor(Entity):
 
     async def async_update(self):
         """Get the latest data from Alerta API."""
-        await self.alerta.async_update()
+        self.alerta.async_update()
         self._state = 'ok'
         for alert in self.alerta.alerts:
             if alert.severity in ['security', 'critical', 'major']: