diff --git a/jjb/verify/xos.yaml b/jjb/verify/xos.yaml
index fdf135b..4a474b6 100644
--- a/jjb/verify/xos.yaml
+++ b/jjb/verify/xos.yaml
@@ -8,6 +8,7 @@
     jobs:
       - 'verify-xos-jobs':
           branch-regexp: '{supported-branches-regexp}'
+          semver-strict: 1
 
 - job-group:
     name: 'verify-xos-jobs'