diff --git a/tox.ini b/tox.ini
index 8f2ddf14..4434bd32 100644
--- a/tox.ini
+++ b/tox.ini
@@ -85,7 +85,7 @@ commands =
 usedevelop = True
 basepython = python3
 deps =
-  -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt}
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/requirements.txt
   -r{toxinidir}/doc/requirements.txt