diff --git a/.travis.yml b/.travis.yml
index 67d7fc2f..35338ca1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,6 +18,7 @@ addons:
       - gcc-4.9
       - g++-4.9
       - libboost1.55-all-dev
+      - python-numpy
 # before_script:
   # - export PATH=$HOME/.local/bin:$PATH
   # - pip install numpy --user `whoami`