diff --git a/.travis.yml b/.travis.yml
index 025300554a..376c871cf3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,15 @@
 language: node_js
 node_js:
-- '4'
+- '0.10'
+- '4.2.6'
 cache:
   directories:
   - node_modules
 sudo: false
 script:
-- npm test
+- npm run test:babel
 - rm -rf .tmp
-- ./node_modules/.bin/docpress build
+- if [ "$(node -v)" = "v4.2.6" ]; then ./node_modules/.bin/docpress build; fi
 after_success:
 - if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then ./node_modules/.bin/git-update-ghpages -e; fi
 env:
diff --git a/package.json b/package.json
index d2ed84f79c..a289d2ad2e 100644
--- a/package.json
+++ b/package.json
@@ -15,12 +15,14 @@
     "bin"
   ],
   "dependencies": {
+    "babel-cli": "6.4.5",
+    "babel-preset-es2015": "6.3.13",
     "bluebird": "3.2.1",
     "byline": "4.2.1",
     "chalk": "1.1.1",
     "commondir": "1.0.1",
     "debug": "2.2.0",
-    "got": "6.1.1",
+    "got": "5.4.1",
     "gunzip-maybe": "1.3.1",
     "meow": "3.7.0",
     "mkdirp": "0.5.1",
@@ -41,11 +43,13 @@
     "throat": "2.0.2"
   },
   "devDependencies": {
+    "babel-cli": "6.4.5",
     "docpress": "0.6.10",
     "eslint": "1.10.3",
     "eslint-config-standard": "4.4.0",
     "eslint-plugin-standard": "1.3.1",
     "git-update-ghpages": "1.3.0",
+    "in-publish": "2.0.0",
     "nixt": "0.5.0",
     "npm": "3.6.0",
     "sepia": "2.0.1",
@@ -69,7 +73,15 @@
     "url": "git+https://github.com/rstacruz/pnpm.git"
   },
   "scripts": {
-    "lol": "which node-gyp",
-    "test": "node test | tap-spec"
+    "build": "if [ ! -d lib~ ]; then mv lib lib~; babel -D lib~ -d lib; fi",
+    "test": "node test | tap-spec",
+    "test:babel": "babel-node test | tap-spec",
+    "prepublish": "if in-publish; then npm run build; fi",
+    "postpublish": "rm -rf lib; mv lib~ lib"
+  },
+  "babel": {
+    "presets": [
+      "es2015"
+    ]
   }
 }
diff --git a/test/index.js b/test/index.js
index 155c453ca6..6299c0cdc3 100644
--- a/test/index.js
+++ b/test/index.js
@@ -21,7 +21,7 @@ test('small with dependencies (rimraf)', function (t) {
     t.ok(stat.isSymbolicLink(), '.bin/rimraf symlink is available')
 
     stat = fs.statSync(join(process.cwd(), 'node_modules', 'rimraf', 'bin.js'))
-    t.equal(stat.mode, 0o100755, 'rimraf is executable')
+    t.equal(stat.mode, parseInt('100755', 8), 'rimraf is executable')
     t.ok(stat.isFile(), '.bin/rimraf refers to a file')
 
     t.end()