diff --git a/.travis.yml b/.travis.yml
index c398bbfe..1aed2124 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,14 @@
+os:
+  - linux
+  - osx
 git:
   depth: 1
 language: python
 python:
   - 3.4
+before_install:
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then; then; brew update; fi
+  - if [ "$TRAVIS_OS_NAME" = "osx" ]; then; then; brew install python3; fi
 install:
   - pip install tox
 script: