diff --git a/src/alerting.py b/src/alerting.py
index 0df1622..e4779e6 100644
--- a/src/alerting.py
+++ b/src/alerting.py
@@ -108,11 +108,8 @@ class MatrixNotifier:
         if alert.message:
             message += f"\n**Details:** {alert.message}\n"
 
-        # Add Grafana dashboard link
-        grafana_url = (
-            "https://metrics.b4l.co.th/d/ac9b26b7-d898-49bd-ad8e-32f0496f6741/psql-water"
-            "?orgId=1&from=now-30d&to=now&timezone=browser"
-        )
+        # Add Grafana public dashboard link
+        grafana_url = "https://metrics.b4l.co.th/public-dashboards/655730aa044f44f49b355d01386018ca"
         message += f"\n📈 **View Dashboard:** {grafana_url}"
 
         return self.send_message(message)