diff --git a/roles/backups/templates/9iron-backup.service b/roles/backups/templates/9iron-backup.service
index 192e4bd..888ff21 100644
--- a/roles/backups/templates/9iron-backup.service
+++ b/roles/backups/templates/9iron-backup.service
@@ -4,6 +4,7 @@ Description=9iron backup service
 
 [Service]
 Type=oneshot
+MemoryMax=256M
 ExecStart=/opt/backups/backup.sh
 
 [Install]