diff --git a/kubernetes/main/apps/monitoring/kube-prometheus-stack/helm-release.yaml b/kubernetes/main/apps/monitoring/kube-prometheus-stack/helm-release.yaml
index 592d60c..e631552 100644
--- a/kubernetes/main/apps/monitoring/kube-prometheus-stack/helm-release.yaml
+++ b/kubernetes/main/apps/monitoring/kube-prometheus-stack/helm-release.yaml
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: "66.3.0"
+      version: "66.4.0"
       sourceRef:
         kind: HelmRepository
         name: prometheus-community-charts
diff --git a/kubernetes/thin/apps/monitoring/kube-prometheus-stack/app/helm-release.yaml b/kubernetes/thin/apps/monitoring/kube-prometheus-stack/app/helm-release.yaml
index a976d72..125cabc 100644
--- a/kubernetes/thin/apps/monitoring/kube-prometheus-stack/app/helm-release.yaml
+++ b/kubernetes/thin/apps/monitoring/kube-prometheus-stack/app/helm-release.yaml
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: "66.3.0"
+      version: "66.4.0"
       sourceRef:
         kind: HelmRepository
         name: prometheus-community