diff --git a/base/monitoring/kube-prometheus-stack/helmrelease.yaml b/base/monitoring/kube-prometheus-stack/helmrelease.yaml
index 7597947d0..ff0f88ba5 100644
--- a/base/monitoring/kube-prometheus-stack/helmrelease.yaml
+++ b/base/monitoring/kube-prometheus-stack/helmrelease.yaml
@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: kube-prometheus-stack
-      version: 51.9.2
+      version: 51.9.4
       sourceRef:
         kind: HelmRepository
         name: prometheus-community
diff --git a/crds/kube-prometheus-stack/crds.yaml b/crds/kube-prometheus-stack/crds.yaml
index c057bece2..d77ae7bc5 100644
--- a/crds/kube-prometheus-stack/crds.yaml
+++ b/crds/kube-prometheus-stack/crds.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
-    tag: kube-prometheus-stack-51.9.2
+    tag: kube-prometheus-stack-51.9.4
   ignore: |
     # exclude all
     /*