diff --git a/tox.ini b/tox.ini
index a614f9bf..8added6e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ setenv =
     VIRTUAL_ENV={envdir}
     OS_TEST_PATH=cyborg/tests/unit
 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}/requirements.txt
   -r{toxinidir}/test-requirements.txt
 
@@ -92,7 +92,7 @@ ignore-path = .venv,.git,.tox,*cyborg/locale*,*lib/python*,*cyborg.egg*,api-ref/
 description =
   Build main documentation.
 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 =
     rm -rf doc/build/html