diff --git a/tox.ini b/tox.ini
index 395da85..4691e1d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@ envlist = linters
 [testenv]
 usedevelop = True
 install_command =
-    pip install -c{env:TOX_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt} {opts} {packages}
+    pip install -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/ussuri} {opts} {packages}
 deps =
     -r{toxinidir}/test-requirements.txt
 commands =