diff --git a/.travis.yml b/.travis.yml
index 43b2eaf..e81225d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,9 +6,9 @@ cache:
 notifications:
   email: false
 node_js:
-  - '4'
+  - '5.2'
 before_install:
-  - npm i -g npm@^2.0.0
+  - npm i -g npm@^3.3
 before_script:
   - npm prune
   - 'curl -Lo travis_after_all.py https://git.io/vLSON'
diff --git a/package.json b/package.json
index 401cf95..9bd2f83 100644
--- a/package.json
+++ b/package.json
@@ -34,10 +34,13 @@
   "main": "./dist/lory.js",
   "jsnext:main": "./src/lory.js",
   "devDependencies": {
+    "babel-cli": "6.11.4",
     "babel-core": "6.13.1",
     "babel-loader": "6.2.5",
     "babel-preset-es2015": "6.13.2",
     "babel-preset-stage-0": "6.5.0",
+    "babel-register": "6.11.6",
+    "babel-runtime": "6.11.6",
     "better-npm-run": "0.0.11",
     "chai": "3.5.0",
     "clamp.js": "0.2.9",