diff --git a/tox.ini b/tox.ini
index 9b61ff0d..6b346f9b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,7 @@ passenv =  http_proxy
            HTTPS_PROXY
            no_proxy
            NO_PROXY
-deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+deps = -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/2023.2}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 install_command = pip install {opts} {packages}