diff --git a/.travis.yml b/.travis.yml
index c5f3961c..bf34bab2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,7 @@ install:
     - 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
     - if [[ $TRAVIS_PYTHON_VERSION == '2.'* ]]; then pip install PIL --use-mirrors ; true; fi
+    - if [[ $TRAVIS_PYTHON_VERSION == '2.5' ]]; then pip install simplejson --use-mirrors ; true; fi
     - if [[ $PYMONGO == 'dev' ]]; then pip install https://github.com/mongodb/mongo-python-driver/tarball/master; true; fi
     - if [[ $PYMONGO != 'dev' ]]; then pip install pymongo==$PYMONGO --use-mirrors; true; fi
     - python setup.py install