diff --git a/tox.ini b/tox.ini
index 35fdf5f..a7270f4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,7 +8,7 @@ skipsdist = True
 basepython = python3
 allowlist_externals = bash
 setenv = VIRTUAL_ENV={envdir}
-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/xena}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands= stestr run --slowest {posargs}
@@ -18,7 +18,7 @@ commands = flake8
 
 [testenv:docs]
 deps =
-    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/xena}
     -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -W -b html doc/source doc/build/html
 
@@ -46,7 +46,7 @@ commands =
 
 [testenv:releasenotes]
 deps =
-    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+    -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/xena}
     -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html