diff --git a/tox.ini b/tox.ini
index 5bf76d23..368d26fa 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,6 @@ ignore_basepython_conflict = True
 basepython = python3
 
 [testenv:releasenotes]
-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/2023.1}
        -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html