diff --git a/zuul.d/project-templates.yaml b/zuul.d/project-templates.yaml
index 1ffcada..037a0f0 100644
--- a/zuul.d/project-templates.yaml
+++ b/zuul.d/project-templates.yaml
@@ -42,10 +42,14 @@
       Runs the release notes test and publish jobs for StarlingX.
     check:
       jobs:
-        - build-openstack-releasenotes
+        - build-openstack-releasenotes:
+            vars:
+              sphinx_python: python3
     gate:
       jobs:
-        - build-openstack-releasenotes
+        - build-openstack-releasenotes:
+            vars:
+              sphinx_python: python3
     post:
       jobs:
         - publish-stx-releasenotes