diff --git a/tools/tox_install.sh b/tools/tox_install.sh
index 85d8498e5..8b47a3565 100755
--- a/tools/tox_install.sh
+++ b/tools/tox_install.sh
@@ -53,7 +53,7 @@ elif [ -x "$ZUUL_CLONER" ]; then
     $ZUUL_CLONER --cache-dir \
         /opt/git \
         --branch $BRANCH_NAME \
-        git://git.openstack.org \
+        https://git.openstack.org \
         openstack/neutron
     cd openstack/neutron
     $install_cmd -e .