diff --git a/tox.ini b/tox.ini
index 09a1959a6..141fe26b8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,6 @@ skipsdist = True
 
 [testenv]
 usedevelop = True
-install_command = python3 -m pip install {opts} {packages}
 passenv = *
 setenv =
    ANSIBLE_SKIP_CONFLICT_CHECK=1
@@ -30,6 +29,8 @@ setenv =
    TRIPLEO_ANSIBLE_COMPUTE_NODE_MOLECULE_VOLUMES=['{homedir}/.cache/tripleo-ansible/containers:/var/lib/containers:rw','/sys/fs/cgroup:/sys/fs/cgroup:rw']
 sitepackages = True
 deps =
+   -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+   -r {toxinidir}/requirements.txt
    -r {toxinidir}/test-requirements.txt
    -r {toxinidir}/ansible-requirements.txt
 commands =