diff --git a/tox.ini b/tox.ini
index 760dd4c..a7494e6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@ minversion = 2.3.2
 [testenv:py27]
 deps = zuul
 commands =
-    zuul-cloner --cache-dir /opt/git git://git.openstack.org \
+    zuul-cloner --cache-dir /opt/git https://git.openstack.org \
     openstack/nova openstack/cinder \
     openstack/neutron openstack/glance_store
     ./run_tests.sh -wj