diff --git a/jobs/templates/swh-cypress.yaml b/jobs/templates/swh-cypress.yaml
--- a/jobs/templates/swh-cypress.yaml
+++ b/jobs/templates/swh-cypress.yaml
@@ -43,6 +43,8 @@
     scm:
       - git:
           url: https://forge.softwareheritage.org/source/{display-name}.git
+          branches:
+            - origin/master
 
     wrappers:
       - phabricator-differential:
diff --git a/jobs/templates/swh-tox.yaml b/jobs/templates/swh-tox.yaml
--- a/jobs/templates/swh-tox.yaml
+++ b/jobs/templates/swh-tox.yaml
@@ -17,6 +17,8 @@
     scm:
       - git:
           url: https://forge.softwareheritage.org/source/{display-name}.git
+          branches:
+            - origin/master
 
     wrappers:
       - phabricator-differential: