diff --git a/tox.ini b/tox.ini
index 88ab82235..cc7ada9ab 100644
--- a/tox.ini
+++ b/tox.ini
@@ -62,7 +62,7 @@ commands =
 [testenv:releasenotes]
 basepython = python3
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/wallaby}
   -r {toxinidir}/doc/requirements.txt
 commands =
     sphinx-build -a -E -W -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
@@ -70,7 +70,7 @@ commands =
 [testenv:docs]
 basepython = python3
 deps =
-  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/wallaby}
   -r {toxinidir}/doc/requirements.txt
 commands=
     ansible-galaxy install -fr {toxinidir}/tripleo_ansible/ansible-collections-requirements.yml