diff --git a/tox.ini b/tox.ini
index c41765e74..b0f091ea5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,7 @@ skipsdist = True
 setenv =
     PYTHON=coverage run --source barbican --parallel-mode
 usedevelop = True
-install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt} -U {opts} {packages}
+install_command = pip install -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master} -U {opts} {packages}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt