diff --git a/tox.ini b/tox.ini
index 3f45d8ab5..7578b21a3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,7 +32,7 @@ passenv =
     SSL_CERT_FILE
     TERM
 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}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}
@@ -66,7 +66,7 @@ commands =
   coverage report
 
 [testenv:docs]
-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/wallaby}
        -r{toxinidir}/doc/requirements.txt
 commands =
   sphinx-build -W --keep-going -b html -d doc/build/doctrees doc/source doc/build/html