diff --git a/.travis.yml b/.travis.yml
index 587bd3e..896e270 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1 +1,9 @@
 language: node_js
+sudo: false
+node_js:
+  - "0.10"
+  - "0.12"
+  - "4"
+  - "5"
+before_install:
+  - npm i -g npm
diff --git a/package.json b/package.json
index b726587..36088c6 100644
--- a/package.json
+++ b/package.json
@@ -1,34 +1,41 @@
 {
-    "name": "multi-glob",
-    "version": "0.4.0",
-    "description": "Small wrapper around the glob module that allows globbing for multiple patterns at once",
-    "homepage": "http://busterjs.org/docs/modules/multi-glob",
-    "author": "Christian Johansen",
-    "contributors": [{
-        "name": "Christian Johansen",
-        "email": "christian@cjohansen.no",
-        "url": "http://cjohansen.no"
-    }, {
-        "name": "Stein Magnus Jodal",
-        "email": "stein.magnus@jodal.no",
-        "url": "http://jodal.no"
-    }],
-    "license": "BSD-3-Clause",
-    "main": "./lib/multi-glob",
-    "repository": {
-        "type": "git",
-        "url": "https://github.com/busterjs/multi-glob.git"
+  "name": "multi-glob",
+  "version": "0.4.0",
+  "description": "Small wrapper around the glob module that allows globbing for multiple patterns at once",
+  "homepage": "http://busterjs.org/docs/modules/multi-glob",
+  "author": "Christian Johansen",
+  "contributors": [
+    {
+      "name": "Christian Johansen",
+      "email": "christian@cjohansen.no",
+      "url": "http://cjohansen.no"
     },
-    "scripts": {
-        "test": "node node_modules/buster/bin/buster-test",
-        "test-debug": "node --debug-brk node_modules/buster/bin/buster-test"
-    },
-    "dependencies": {
-        "glob": ">=3.1.9",
-        "async": ">=0.1.22",
-        "lodash": "~1.0"
-    },
-    "devDependencies": {
-        "buster": "*"
+    {
+      "name": "Stein Magnus Jodal",
+      "email": "stein.magnus@jodal.no",
+      "url": "http://jodal.no"
     }
+  ],
+  "license": "BSD-3-Clause",
+  "main": "./lib/multi-glob",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/busterjs/multi-glob.git"
+  },
+  "scripts": {
+    "test": "node node_modules/buster/bin/buster-test",
+    "test-debug": "node --debug-brk node_modules/buster/bin/buster-test"
+  },
+  "engines": {
+    "node": ">= 4"
+  },
+  "dependencies": {
+    "glob": "5.x",
+    "async": "1.x",
+    "lodash": "3.x"
+  },
+  "devDependencies": {
+    "buster": "*",
+    "proxyquire": "1.x"
+  }
 }
diff --git a/test/multi-glob-test.js b/test/multi-glob-test.js
index 5a0f08c..5f90a9e 100644
--- a/test/multi-glob-test.js
+++ b/test/multi-glob-test.js
@@ -1,114 +1,98 @@
 var buster = require("buster");
-var async = require("async");
-var _ = require("lodash");
-var glob = {};
-var vm = require("vm");
-var fs = require("fs");
-
+var proxyquire = require("proxyquire");
 var assert = buster.referee.assert;
 
-var sandbox = {
-    buster: buster,
-    require: function (name) {
-        if (name === "async") { return async; }
-        if (name === "lodash") { return _; }
-        return function () {
-            return glob.glob.apply(glob, arguments);
-        };
-    },
-    module: {}
-};
-
-var lib = require("path").join(__dirname, "../lib/multi-glob.js");
-var code = fs.readFileSync(lib, "utf-8");
-vm.runInNewContext(code, sandbox);
-var g = sandbox.module.exports;
-
 buster.testCase("Multi-glob", {
-    setUp: function () {
-        glob.glob = this.stub();
+    "setUp": function () {
+        this.nodeGlobStub = this.stub();
+        this.multiGlob = proxyquire("../lib/multi-glob.js", {
+            glob: this.nodeGlobStub
+        });
     },
 
     "calls glob with pattern": function () {
-        g.glob("lib/buster.js");
+        this.multiGlob.glob("lib/buster.js");
 
-        assert.calledOnceWith(glob.glob, "lib/buster.js");
+        assert.calledOnceWith(this.nodeGlobStub, "lib/buster.js");
     },
 
     "calls glob with provided options": function () {
         var args = { silent: true };
-        g.glob("lib/buster.js", args);
+        this.multiGlob.glob("lib/buster.js", args);
 
-        assert.calledOnceWith(glob.glob, "lib/buster.js", args);
+        assert.calledOnceWith(this.nodeGlobStub, "lib/buster.js", args);
     },
 
     "calls glob with empty options when none are provided": function () {
-        g.glob("lib/buster.js");
+        this.multiGlob.glob("lib/buster.js");
 
-        assert.equals(glob.glob.args[0].length, 3);
-        assert.isFunction(glob.glob.args[0][2]);
+        assert.equals(this.nodeGlobStub.args[0].length, 3);
+        assert.isFunction(this.nodeGlobStub.args[0][2]);
     },
 
     "calls glob once with each pattern": function () {
-        g.glob(["lib/buster.js", "src/buster.js"]);
+        this.multiGlob.glob(["lib/buster.js", "src/buster.js"]);
 
-        assert.calledTwice(glob.glob);
-        assert.calledWith(glob.glob, "lib/buster.js");
-        assert.calledWith(glob.glob, "src/buster.js");
+        assert.calledTwice(this.nodeGlobStub);
+        assert.calledWith(this.nodeGlobStub, "lib/buster.js");
+        assert.calledWith(this.nodeGlobStub, "src/buster.js");
     },
 
-    "calls callback with result from glob": function () {
+    "calls callback with result from glob": function (done) {
         var callback = this.spy();
-        glob.glob.yields(null, ["lib/buster.js"]);
+        this.nodeGlobStub.yields(null, ["lib/buster.js"]);
 
-        g.glob("lib/buster.js", callback);
-
-        assert.calledOnceWith(callback, undefined, ["lib/buster.js"]);
+        this.multiGlob.glob("lib/buster.js", function (err, res) {
+            assert.isNull(err);
+            assert.equals(res, ["lib/buster.js"]);
+            done();
+        });
     },
 
-    "calls callback with combined results from glob": function () {
-        var callback = this.spy();
-        glob.glob.withArgs("lib/buster.js").yields(null, ["lib/buster.js"]);
+    "calls callback with combined results from glob": function (done) {
+        this.nodeGlobStub.withArgs("lib/buster.js").yields(null, ["lib/buster.js"]);
         var files = ["src/buster.js", "src/stuff.js"];
-        glob.glob.withArgs("src/*.js").yields(null, files);
-
-        g.glob(["lib/buster.js", "src/*.js"], callback);
+        this.nodeGlobStub.withArgs("src/*.js").yields(null, files);
 
-        assert.calledWith(callback, undefined,
-                          ["lib/buster.js", "src/buster.js", "src/stuff.js"]);
+        this.multiGlob.glob(["lib/buster.js", "src/*.js"], function (err, res) {
+            assert.isNull(err);
+            assert.equals(res, ["lib/buster.js", "src/buster.js", "src/stuff.js"]);
+            done();
+        });
     },
 
-    "calls callback once with glob error": function () {
-        var callback = this.spy();
-        glob.glob.withArgs("lib/buster.js").yields({ message: "Oh no" });
+    "calls callback once with glob error": function (done) {
+        this.nodeGlobStub.withArgs("lib/buster.js").yields({ message: "Oh no" });
         var files = ["src/buster.js", "src/stuff.js"];
-        glob.glob.withArgs("src/*.js").yields(null, files);
-
-        g.glob(["lib/buster.js", "src/*.js"], callback);
+        this.nodeGlobStub.withArgs("src/*.js").yields(null, files);
 
-        assert.calledWith(callback, { message: "Oh no" });
+        this.multiGlob.glob(["lib/buster.js", "src/*.js"], function (err) {
+            assert.equals(err, { message: "Oh no" });
+            done();
+        });
     },
 
-    "ignore duplicated items from glob": function () {
-        var callback = this.spy();
-        glob.glob.withArgs("src/foo.js").yields(null, ["src/foo.js"]);
+    "ignore duplicated items from glob": function (done) {
+        this.nodeGlobStub.withArgs("src/foo.js").yields(null, ["src/foo.js"]);
         var files = ["src/foo.js", "src/bar.js"];
-        glob.glob.withArgs("src/*.js").yields(null, files);
+        this.nodeGlobStub.withArgs("src/*.js").yields(null, files);
 
-        g.glob(["src/foo.js", "src/*.js"], callback);
-
-        assert.calledWith(callback, undefined, ["src/foo.js", "src/bar.js"]);
+        this.multiGlob.glob(["src/foo.js", "src/*.js"], function (err, res) {
+            assert.isNull(err);
+            assert.equals(res, ["src/foo.js", "src/bar.js"]);
+            done();
+        });
     },
 
     "strict": {
-        "fails on glob that matches no patterns": function () {
-            var callback = this.spy();
-            glob.glob.withArgs("src/foo.js").yields(null, []);
-
-            g.glob(["src/foo.js"], { strict: true }, callback);
-
-            assert.match(callback.args[0][0], {
-                message: "'src/foo.js' matched no files"
+        "fails on glob that matches no patterns": function (done) {
+            this.nodeGlobStub.withArgs("src/foo.js").yields(null, []);
+
+            this.multiGlob.glob(["src/foo.js"], { strict: true }, function (err) {
+                assert.match(err, {
+                    message: "'src/foo.js' matched no files"
+                });
+                done()
             });
         }
     }