diff --git a/kubernetes/apps/observability/grafana/app/helmrelease.yaml b/kubernetes/apps/observability/grafana/app/helmrelease.yaml
index 6d9565535..61fd664f4 100644
--- a/kubernetes/apps/observability/grafana/app/helmrelease.yaml
+++ b/kubernetes/apps/observability/grafana/app/helmrelease.yaml
@@ -245,7 +245,7 @@ spec:
         kubernetes-coredns:
           # renovate: depName="Kubernetes / System / CoreDNS"
           gnetId: 15762
-          revision: 20
+          revision: 21
           datasource: Prometheus
         kubernetes-global:
           # renovate: depName="Kubernetes / Views / Global"