diff --git a/tox.ini b/tox.ini
index fbc58c78..014fff6b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -65,7 +65,7 @@ commands = {[testenv:func]commands}
 [testenv:docs]
 basepython = python3
 usedevelop = False
-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/yoga}
        -r{toxinidir}/doc/requirements.txt
 commands=
     sphinx-build -W -b html doc/source doc/build/html -W
@@ -100,7 +100,7 @@ commands = bindep test
 [testenv:releasenotes]
 basepython = python3
 usedevelop = False
-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/yoga}
        -r{toxinidir}/doc/requirements.txt
 commands = sphinx-build -a -W -E -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html