diff --git a/modules/openstack_project/files/zuul/layout.yaml b/modules/openstack_project/files/zuul/layout.yaml
index ded42c8b95..57706e7c21 100644
--- a/modules/openstack_project/files/zuul/layout.yaml
+++ b/modules/openstack_project/files/zuul/layout.yaml
@@ -160,7 +160,7 @@ jobs:
   - name: gate-grenade-noop
     branch: ^(stable/(folsom|grizzly)).*$
   - name: gate-devstack-bash8
-    branch: ^(stable/(folsom|grizzly)).*$
+    branch: ^(?!stable/(folsom|grizzly)).*$
     voting: false
   - name: gate-tempest-docs
     branch: ^(?!stable/(folsom|grizzly)).*$