diff --git a/flux2/apps/monitoring/kube-prometheus-stack-release.yaml b/flux2/apps/monitoring/kube-prometheus-stack-release.yaml
index 13c80a29b4652fc3ed94d03f5310ab6021fc7c9e..a2a810a41a25300277e8b3f7966f3f19e6128b75 100644
--- a/flux2/apps/monitoring/kube-prometheus-stack-release.yaml
+++ b/flux2/apps/monitoring/kube-prometheus-stack-release.yaml
@@ -11,7 +11,7 @@ spec:
       # https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack
       # renovate: registryUrl=https://prometheus-community.github.io/helm-charts
       chart: kube-prometheus-stack
-      version: 20.0.1
+      version: 21.0.0
       sourceRef:
         kind: HelmRepository
         name: prometheus-community