diff --git a/.zuul.yaml b/.zuul.yaml
index b8d9901ee7..9b8a48db38 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -372,6 +372,8 @@
     name: swift-tox-lower-constraints
     parent: openstack-tox-lower-constraints
     vars:
+      bindep_profile: test py27
+      python_version: 2.7
       tox_environment:
         TMPDIR: '{{ ansible_env.HOME }}/xfstmp'
 
diff --git a/tox.ini b/tox.ini
index 353b87ee6c..292f34a83c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -145,6 +145,7 @@ commands = sphinx-build -a -W -E -d releasenotes/build/doctrees -b html releasen
 # FIXME(dhellmann): We'll want to uncomment this
 # when the full test suite works with python 3.
 # basepython = python3
+basepython = python2.7
 deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt