diff --git a/test-requirements-py3.txt b/test-requirements-py3.txt
new file mode 100644
index 00000000..eba16b8c
--- /dev/null
+++ b/test-requirements-py3.txt
@@ -0,0 +1,10 @@
+coverage>=3.6
+discover
+fixtures>=0.3.12
+flake8
+python-subunit
+sphinx>=1.1.2
+-e bzr+lp:testrepository#egg=testrepository
+testresources
+testscenarios
+testtools>=0.9.27
diff --git a/tox.ini b/tox.ini
index 6d32c866..3905c7a0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -11,6 +11,10 @@ deps = -r{toxinidir}/requirements.txt
 commands =
   python setup.py testr --slowest --testr-args='{posargs}'
 
+[testenv:py33]
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements-py3.txt
+
 [tox:jenkins]
 sitepackages = True
 downloadcache = ~/cache/pip