diff --git a/zuul.d/project-templates.yaml b/zuul.d/project-templates.yaml
index 1a79080c..19de13bb 100644
--- a/zuul.d/project-templates.yaml
+++ b/zuul.d/project-templates.yaml
@@ -242,10 +242,14 @@
          <https://docs.openstack.org>`_ .
     check:
       jobs:
-        - build-openstack-releasenotes
+        - build-openstack-releasenotes:
+            vars:
+              sphinx_python: python3
     gate:
       jobs:
-        - build-openstack-releasenotes
+        - build-openstack-releasenotes:
+            vars:
+              sphinx_python: python3
     promote:
       jobs:
         - promote-openstack-releasenotes