diff --git a/tox.ini b/tox.ini
index 9b703fe8..040fc1b5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@ skipsdist = True
 [testenv]
 usedevelop = True
 install_command = {toxinidir}/tools/tox_install.sh \
-                  {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt} \
+                  {env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=stable/queens} \
                   {opts} {packages}
 setenv =
   VIRTUAL_ENV={envdir}