diff --git a/.travis.yml b/.travis.yml
index 78f621d..26a29c6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - '0.10'
-  - '0.11'
+  - 4
+  - 6
 after_script:
   - npm run coveralls
diff --git a/package.json b/package.json
index 342cd6d..0a6bd98 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "should": "^11.1.0"
   },
   "engines": {
-    "node": ">=0.9.0",
+    "node": ">= 4",
     "npm": ">=1.2.10"
   },
   "license": "MIT"