diff --git a/.travis.yml b/.travis.yml
index 6ca13cb..0d819ef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,10 @@ env:
   - TOX_ENV=py32
   - TOX_ENV=py33
   - TOX_ENV=py34
+  - TOX_ENV=py35
+  - TOX_ENV=py36
+  - TOX_ENV=py37
+  - TOX_ENV=py38
 
 install:
   - pip install tox
diff --git a/tox.ini b/tox.ini
index 5e94c62..86c5368 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,4 +1,4 @@
 [tox]
-envlist = py27, pypy, py32, py33, py34
+envlist = py27, pypy, py32, py33, py34, py35, py36, py37, py38
 [testenv]
 commands=python setup.py test