diff --git a/tox.ini b/tox.ini
index 4680a6ee..8dfe2086 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,7 +16,7 @@ commands =
   python setup.py test --coverage --coverage-package-name=cliff --slowest --testr-args='{posargs}'
   coverage report --show-missing
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/stein}
   -r{toxinidir}/test-requirements.txt
   -r{toxinidir}/requirements.txt