diff --git a/packages/system/seaweedfs/charts/seaweedfs/templates/volume-statefulset.yaml b/packages/system/seaweedfs/charts/seaweedfs/templates/volume-statefulset.yaml
index 0a70d8c..eb3bb91 100644
--- a/packages/system/seaweedfs/charts/seaweedfs/templates/volume-statefulset.yaml
+++ b/packages/system/seaweedfs/charts/seaweedfs/templates/volume-statefulset.yaml
@@ -10,6 +10,9 @@ metadata:
     app.kubernetes.io/managed-by: {{ .Release.Service }}
     app.kubernetes.io/instance: {{ .Release.Name }}
 spec:
+  persistentVolumeClaimRetentionPolicy:
+    whenDeleted: Delete
+    whenScaled: Delete
   serviceName: {{ template "seaweedfs.name" . }}-volume
   replicas: {{ .Values.volume.replicas }}
   podManagementPolicy: {{ .Values.volume.podManagementPolicy }}
