diff --git a/zuul.yaml b/zuul.yaml
index 96dbe281b1..626bb2b816 100644
--- a/zuul.yaml
+++ b/zuul.yaml
@@ -100,7 +100,7 @@
     trigger:
       gerrit:
         - event: ref-updated
-          ref: ^(?!refs/).*$
+          ref: ^refs/heads/.*$
 
 - pipeline:
     name: pre-release
@@ -156,7 +156,7 @@
     trigger:
       gerrit:
         - event: ref-updated
-          ref: ^(?!refs/).*$
+          ref: ^refs/heads/.*$
     failure:
       smtp:
         from: zuul@openstack.org