diff --git a/manifests/artemis/mailu/kustomization.yaml b/manifests/artemis/mailu/kustomization.yaml
index 7e78444..4a4b950 100644
--- a/manifests/artemis/mailu/kustomization.yaml
+++ b/manifests/artemis/mailu/kustomization.yaml
@@ -10,7 +10,7 @@ resources:
 helmCharts:
   - name: mailu
     repo: https://mailu.github.io/helm-charts/
-    version: 2.1.2
+    version: 2.6.3
     releaseName: mailu
     namespace: mailu
     valuesFile: values.yaml