diff --git a/modules/openstack_project/files/zuul/layout.yaml b/modules/openstack_project/files/zuul/layout.yaml
index 327071bd91..16b72f036f 100644
--- a/modules/openstack_project/files/zuul/layout.yaml
+++ b/modules/openstack_project/files/zuul/layout.yaml
@@ -107,7 +107,7 @@ pipelines:
     trigger:
       gerrit:
         - event: ref-updated
-          ref: ^refs/tags/([0-9]+\.)+[0-9]*(alpha|beta|candidate|rc|a|b|c|r|g)[0-9]*$
+          ref: ^refs/tags/([0-9]+\.?)+(alpha|beta|candidate|rc|a|b|c|r|g)[0-9]*$
 
   - name: release
     description: When a commit is tagged as a release, this pipeline runs jobs that publish archives and documentation.
@@ -116,7 +116,7 @@ pipelines:
     trigger:
       gerrit:
         - event: ref-updated
-          ref: ^refs/tags/([0-9]+\.)+[0-9]+$
+          ref: ^refs/tags/([0-9]+\.)*[0-9]+$
 
   - name: silent
     description: This pipeline is used for silently testing new jobs.