diff --git a/.travis.yml b/.travis.yml
index e38053f6..0c64c737 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,15 @@
 # http://travis-ci.org/#!/MongoEngine/mongoengine
 language: python
 python:
+    - 2.5
     - 2.6
     - 2.7
+    - 3.2
+    - 3.3
 install:
-    - sudo apt-get install zlib1g zlib1g-dev
-    - sudo ln -s /usr/lib/i386-linux-gnu/libz.so /usr/lib/
-    - pip install PIL --use-mirrors ; true
+    - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then sudo apt-get install zlib1g zlib1g-dev; fi
+    - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then sudo ln -s /usr/lib/i386-linux-gnu/libz.so /usr/lib/; fi
+    - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then pip install PIL --use-mirrors ; true; fi
     - python setup.py install
 script:
     - python setup.py test
\ No newline at end of file