diff --git a/kubernetes/apps/observability/alertmanager/silencer/helmrelease.yaml b/kubernetes/apps/observability/alertmanager/silencer/helmrelease.yaml
index 237263f5..54093a4f 100644
--- a/kubernetes/apps/observability/alertmanager/silencer/helmrelease.yaml
+++ b/kubernetes/apps/observability/alertmanager/silencer/helmrelease.yaml
@@ -9,7 +9,7 @@ spec:
   chart:
     spec:
       chart: app-template
-      version: 3.0.4
+      version: 3.5.1
       sourceRef:
         kind: HelmRepository
         name: bjw-s