diff --git a/.travis.yml b/.travis.yml
index a7aef533..6defb3e2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ before_install:
 
 # Install packages
 install:
-  - conda install --yes pip python=$TRAVIS_PYTHON_VERSION numpy scipy matplotlib
+  - conda install --yes pip python=$TRAVIS_PYTHON_VERSION numpy scipy matplotlib cython
   - pip install nose-cov python-coveralls
   # - pip install -r requirements.txt
   - python setup.py install