diff --git a/tox.ini b/tox.ini
index eb231416..a9b2d49a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist=
-    dev, coveralls, pylint, flake8, pep257, py26, py27, py32, py33, py34, pypy, pypy3
+    dev, coveralls, pylint, flake8, pep257, py26, py27, py32, py33, py34, py35, pypy, pypy3
 
 [testenv]
 deps=
@@ -75,6 +75,11 @@ basepython=python3.4
 commands=
     unit2 discover tests []
 
+[testenv:py35]
+basepython=python3.5
+commands=
+    unit2 discover tests []
+
 [testenv:pypy]
 basepython=pypy
 commands=