diff --git a/observability/kube-prometheus-stack/kustomization.yml b/observability/kube-prometheus-stack/kustomization.yml
index d85b4e08..b2ce8e00 100644
--- a/observability/kube-prometheus-stack/kustomization.yml
+++ b/observability/kube-prometheus-stack/kustomization.yml
@@ -12,4 +12,4 @@ helmCharts:
     releaseName: prometheus
     repo: https://prometheus-community.github.io/helm-charts
     valuesFile: values.yml
-    version: 56.6.2 # https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack
+    version: 56.21.2 # https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack