diff --git a/clusters/cl01tl/helm/kube-prometheus-stack/Chart.yaml b/clusters/cl01tl/helm/kube-prometheus-stack/Chart.yaml
index 4824b2886..cfbbfe2dc 100644
--- a/clusters/cl01tl/helm/kube-prometheus-stack/Chart.yaml
+++ b/clusters/cl01tl/helm/kube-prometheus-stack/Chart.yaml
@@ -35,4 +35,4 @@ dependencies:
     repository: oci://harbor.alexlebens.net/helm-charts
 icon: https://cdn.jsdelivr.net/gh/selfhst/icons/png/prometheus.png
 # renovate: datasource=github-releases depName=prometheus-operator/prometheus-operator
-appVersion: v0.90.1
+appVersion: v0.91.0