diff --git a/.travis.yml b/.travis.yml
index 89b96b03..6ada3cff 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,20 @@ node_js:
 - 4
 - 6
 
-before_install:
-- sudo apt-get update
-- sudo apt-get install graphviz
+sudo: false
+
+os:
+  - linux
+  - osx
+
+addons:
+  apt:
+    packages:
+      - graphviz
+
+before install:
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update          ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install graphviz; fi
 
 script:
 - npm test