diff --git a/bootstrap/helmfile.d/00-crds.yaml b/bootstrap/helmfile.d/00-crds.yaml
index 61c4171b..24e5a414 100644
--- a/bootstrap/helmfile.d/00-crds.yaml
+++ b/bootstrap/helmfile.d/00-crds.yaml
@@ -27,4 +27,4 @@ releases:
   - name: kube-prometheus-stack
     namespace: observability
     chart: oci://ghcr.io/prometheus-community/charts/kube-prometheus-stack
-    version: 81.5.0
+    version: 81.5.1
diff --git a/kubernetes/apps/monitoring/kube-prometheus-stack/app/ocirepository.yaml b/kubernetes/apps/monitoring/kube-prometheus-stack/app/ocirepository.yaml
index 868399fa..fedce01f 100644
--- a/kubernetes/apps/monitoring/kube-prometheus-stack/app/ocirepository.yaml
+++ b/kubernetes/apps/monitoring/kube-prometheus-stack/app/ocirepository.yaml
@@ -11,5 +11,5 @@ spec:
     mediaType: application/vnd.cncf.helm.chart.content.v1.tar+gzip
     operation: copy
   ref:
-    tag: 81.5.0
+    tag: 81.5.1
   url: oci://ghcr.io/prometheus-community/charts/kube-prometheus-stack