diff --git a/charts/cluster/templates/prometheus-rule.yaml b/charts/cluster/templates/prometheus-rule.yaml
index 3da33025b3..bc3ffde84d 100644
--- a/charts/cluster/templates/prometheus-rule.yaml
+++ b/charts/cluster/templates/prometheus-rule.yaml
@@ -173,5 +173,5 @@ spec:
             ) > 0.9
           for: 5m
           labels:
-            severity: warning
+            severity: critical
 {{ end }}