diff --git a/argo/photoprism/values.yaml b/argo/photoprism/values.yaml
index 21d028a..4fdaffc 100644
--- a/argo/photoprism/values.yaml
+++ b/argo/photoprism/values.yaml
@@ -50,7 +50,9 @@ persistence:
       persistentVolumeClaim:
         claimName: photoprism
   volumeClaimTemplates:
-    - metadata:
+    - apiVersion: v1
+      kind: PersistentVolumeClaim
+      metadata:
         name: photoprism
       spec:
         accessModes: [ "ReadWriteOnce" ]