diff --git a/roles/docker/tasks/main.yml b/roles/docker/tasks/main.yml
index 784bcf2..9588a79 100644
--- a/roles/docker/tasks/main.yml
+++ b/roles/docker/tasks/main.yml
@@ -43,6 +43,7 @@
 - name: Setup cron job for backup
   cron:
     name: Docker Prune
+    weekday: 0
     minute: 0
     hour: 5
     job: "docker system prune -af && docker image prune -af && docker system prune -af --volumes"
\ No newline at end of file