diff --git a/.travis.yml b/.travis.yml
index b692978..15b2a4a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,8 @@ python:
   - "2.6"
   - "2.7"
   - "3.2"
+  - "3.3"
+  - "pypy"
 # command to install dependencies
 install: pip install -r requirements.txt
 # command to run tests