diff --git a/.travis.yml b/.travis.yml
index e290359..29ffae4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,8 @@
   matrix:
   - TOX_ENV=py26
   - TOX_ENV=py27
+  - TOX_ENV=py33
+  - TOX_ENV=py34
 install:
 - pip install tox
 script:
diff --git a/tox.ini b/tox.ini
index 1e868a0..6a3b10b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py26, py27
+envlist = py26, py27, py33, py34
 
 [testenv]
 deps = keyring
@@ -17,3 +17,9 @@
 
 [testenv:py27]
 commands = nosetests
+
+[testenv:py33]
+commands = nosetests
+
+[testenv:py34]
+commands = nosetests