diff --git a/tox.ini b/tox.ini
index 66c141c8..18b7f39e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,7 +19,7 @@ whitelist_externals = bash
                       rm
 install_command = pip install {opts} {packages}
 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}
   .[influxdb,cassandra,elasticsearch]
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/test-requirements.txt