diff --git a/.travis.yml b/.travis.yml
index d431fa42..a323fcdb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,6 @@
 sudo: false
 language: node_js
 node_js:
-  - "0.10"
-  - "0.12"
   - "4"
   - "6"
 
diff --git a/package.json b/package.json
index 2349a52f..7f2e710d 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,9 @@
     "lint": "grunt eslint",
     "test": "grunt mocha-and-karma"
   },
+  "engines": {
+    "node": ">=4.0.0"
+  },
   "dependencies": {
     "async": "^2.0.1",
     "bcryptjs": "^2.1.0",