diff --git a/.travis.yml b/.travis.yml
index 2a12320..6d61fa6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,11 +4,12 @@ node_js:
   - '0.10'
   - 0.12
   - 4
+  - 6
 before_install:
   - npm install -g npm@2.x
 script:
   - npm test
-  - "test $TRAVIS_PULL_REQUEST != 'false' || test $TRAVIS_NODE_VERSION != '4' || npm run test-browser"
+  - "test $TRAVIS_PULL_REQUEST != 'false' || test $TRAVIS_NODE_VERSION != '6' || npm run test-browser"
 env:
   global:
   - secure: L0dg0jr2fwkc2tPwP5svybILPBn2qdLzMrWc5tEXg3MPcy8D59Gvf+ri7INqo+ETPM20o5CsaDCH+LHUNS/V0G4VG1ajvsy7d8uh3hnb/K6VfVui/CjsHIqOcOZrbxVxgyX+iMXEXAj0+Syow9uDQHVhrz1qqad1n79likNCXa4=