diff --git a/.travis.yml b/.travis.yml
index cfa22bcfcd6b9c0ea682d867b845676c10b8e3e1..dffabfb8f7576bf1b94b9ead45e48a6f5dd71770 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ python:
     - "2.6"
     - "2.7"
     - "3.2"
+    - "3.3"
     - "pypy"
 install:
     - if [ "$TRAVIS_PYTHON_VERSION" == "2.6" ]; then pip --quiet install unittest2; fi
diff --git a/tox.ini b/tox.ini
index 62e98eb3f461fc244b8391514d3ac4475605c07c..43b610a9e77ec453ebf735d7b4c57e1ba8fba9f9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist=py26,py27,py32,pypy
+envlist=py26,py27,py32,py33,pypy
 
 [testenv]
 commands=python setup.py test