diff --git a/tasks/backup.yml b/tasks/backup.yml
index cecf3aa..5252e8a 100644
--- a/tasks/backup.yml
+++ b/tasks/backup.yml
@@ -18,4 +18,4 @@
   cron:
     name: db backup cleanup
     job: 'find /opt/postgresbackup/* -mtime +{{ postgresql.backup.keep_days - 1 }} -type f -exec rm {} \;'
-    special_time: daily
+    minute: "21"