diff --git a/components/opdk-backup.yml b/components/opdk-backup.yml
index 4b6ee05..c699930 100644
--- a/components/opdk-backup.yml
+++ b/components/opdk-backup.yml
@@ -1,6 +1,7 @@
 ---
 - hosts: '{{ hosts }}'
   gather_facts: yes
+  serial: 1
   vars_files:
   - ~/.apigee/credentials.yml
   roles: