diff --git a/services/kube-prometheus-stack/67.6.0/defaults/cm.yaml b/services/kube-prometheus-stack/67.6.0/defaults/cm.yaml
index fe967c5b17..88c8a03966 100644
--- a/services/kube-prometheus-stack/67.6.0/defaults/cm.yaml
+++ b/services/kube-prometheus-stack/67.6.0/defaults/cm.yaml
@@ -340,6 +340,9 @@ data:
           requests:
             cpu: 100m
             memory: 200Mi
+        image:
+        repository: quay.io/prometheus/alertmanager
+        tag: v0.28.0
     grafana:
       enabled: true
       defaultDashboardsEnabled: true