diff --git a/k8s/clusters/cluster-0/flux/repositories/git/kube-prometheus-stack.yaml b/k8s/clusters/cluster-0/flux/repositories/git/kube-prometheus-stack.yaml
index 91aca93404..b6ce9e5b6b 100644
--- a/k8s/clusters/cluster-0/flux/repositories/git/kube-prometheus-stack.yaml
+++ b/k8s/clusters/cluster-0/flux/repositories/git/kube-prometheus-stack.yaml
@@ -9,7 +9,7 @@ spec:
   url: https://github.com/prometheus-community/helm-charts.git
   ref:
     # renovate: registryUrl=https://prometheus-community.github.io/helm-charts chart=kube-prometheus-stack
-    tag: kube-prometheus-stack-66.3.0
+    tag: kube-prometheus-stack-66.3.1
   ignore: |
     # exclude all
     /*
diff --git a/k8s/clusters/cluster-0/manifests/system-monitoring/kube-prometheus-stack/helm-release.yaml b/k8s/clusters/cluster-0/manifests/system-monitoring/kube-prometheus-stack/helm-release.yaml
index 257dc9d404..9ede9deec0 100644
--- a/k8s/clusters/cluster-0/manifests/system-monitoring/kube-prometheus-stack/helm-release.yaml
+++ b/k8s/clusters/cluster-0/manifests/system-monitoring/kube-prometheus-stack/helm-release.yaml
@@ -10,7 +10,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: 66.3.0
+      version: 66.3.1
       sourceRef:
         kind: HelmRepository
         name: prometheus-community-charts