diff --git a/tox.ini b/tox.ini
index 34e7bd0b..1ba8415d 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://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
+       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/zed}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands =