diff --git a/tox.ini b/tox.ini
index 5d2323eca..dc94d8bf9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,7 +18,7 @@ setenv =
     OS_STDERR_CAPTURE=1
 
 deps =
-       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/zed}
        -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 
@@ -55,7 +55,7 @@ commands: bandit -r os_brick -x os_brick/tests -n5
 
 [testenv:pylint]
 deps =
-       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+       -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/zed}
        -r{toxinidir}/requirements.txt
        pylint==0.26.0
 commands = bash tools/lintstack.sh
@@ -77,7 +77,7 @@ commands =
 
 [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/zed}
   -r{toxinidir}/doc/requirements.txt
 commands =
   rm -fr doc/build doc/source/contributor/api/ .autogenerated