diff --git a/infra/longhorn/values.yaml b/infra/longhorn/values.yaml
index 27d855f..9e41b42 100644
--- a/infra/longhorn/values.yaml
+++ b/infra/longhorn/values.yaml
@@ -53,7 +53,7 @@ longhorn:
           {
             "name":"backup", 
             "task":"backup", 
-            "cron":"0 0 * * ?", 
+            "cron":"0 0 * * *", 
             "retain":24
           }
         ]'