diff --git a/kubernetes/apps/monitoring/prometheus/app/source.yaml b/kubernetes/apps/monitoring/prometheus/app/source.yaml
index ca6cf77b6..fd71b2d7b 100644
--- a/kubernetes/apps/monitoring/prometheus/app/source.yaml
+++ b/kubernetes/apps/monitoring/prometheus/app/source.yaml
@@ -10,5 +10,5 @@ spec:
     mediaType: application/vnd.cncf.helm.chart.content.v1.tar+gzip
     operation: copy
   ref:
-    tag: 81.5.2
+    tag: 81.6.0
   url: oci://ghcr.io/prometheus-community/charts/kube-prometheus-stack