diff --git a/kubernetes/pi/apps/observability/kube-prometheus-stack/app/helmrelease.yaml b/kubernetes/pi/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
index 67d9c1682f..63d29a2cac 100644
--- a/kubernetes/pi/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
+++ b/kubernetes/pi/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: 56.21.1
+      version: 56.21.2
       sourceRef:
         kind: HelmRepository
         name: prometheus-community
diff --git a/kubernetes/teyvat/apps/observability/kube-prometheus-stack/app/helmrelease.yaml b/kubernetes/teyvat/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
index 3679d1a858..3089734918 100644
--- a/kubernetes/teyvat/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
+++ b/kubernetes/teyvat/apps/observability/kube-prometheus-stack/app/helmrelease.yaml
@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: 56.21.1
+      version: 56.21.2
       sourceRef:
         kind: HelmRepository
         name: prometheus-community