diff --git a/lib/index.js b/lib/index.js
index f8b65ea..0e8e237 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,35 +1,39 @@
-var fs = require('fs')
-  , temporary = require('temporary')
-  , fmt = require('util').format
-  , child_process = require('child_process')
-  , net = require('net')
-  , freeport = require('freeport')
-  , _ = require('lodash')
-  , utils = require('./utils');
+const child_process = require('child_process')
+const fs = require('fs')
+const net = require('net')
+const {tmpdir} = require('os')
+const {join} = require('path')
+const {format} = require('util')
+
+const freeport = require('freeport')
+const _ = require('lodash')
+
+const utils = require('./utils');
+
 
 var MONGOD_BIN = 'mongod';
 var DEFAULT_ARGS = [
-  // don't flood stdout, we're not reading it
-  "--quiet",
+  // journaling on by default in 2.0 and makes it to slow
+  // for tests, can causes failures in jenkins
+  "--nojournal",
   // disable unused.
   "--nounixsocket",
+  // don't flood stdout, we're not reading it
+  "--quiet",
   // use a smaller default file size
   "--smallfiles",
-  // journaling on by default in 2.0 and makes it to slow
-  // for tests, can causes failures in jenkins
-  "--nojournal",
 ]
 var START_CHECK_ATTEMPTS = 200;
 
 
-var MongoBox = function(_options) {
+function MongoBox(_options) {
   var options = _options || {};
   this.options = options;
 
   this.options.mongodBinary = options.mongodBinary || MONGOD_BIN;
 
   if (!this.options.mongodBinary)
-    throw new Error(fmt('Could not find %s in system PATH. Make sure you have mongod installed.', MONGOD_BIN));
+    throw new Error(format('Could not find %s in system PATH. Make sure you have mongod installed.', MONGOD_BIN));
 
   if (fs.existsSync(this.options.databasePath)
     && !fs.statSync(this.options.databasePath).isDirectory()) {
@@ -49,8 +53,8 @@ MongoBox.prototype.start = function(callback) {
       fs.mkdirSync(this.options.databasePath);
     }
   } else {
-    this._temporary = new temporary.Dir();
-    this.options.databasePath = this._temporary.path;
+    this._temporary = fs.mkdtempSync(join(tmpdir(), 'mongobox-'));
+    this.options.databasePath = this._temporary;
   }
 
   var self = this;
@@ -61,10 +65,10 @@ MongoBox.prototype.start = function(callback) {
       doStart.bind(self)();
     });
   } else {
-    doStart();
+    doStart.call(this);
   }
 
-  var doStart = function() {
+  function doStart() {
     var args = _.clone(DEFAULT_ARGS);
     var op
 
@@ -85,7 +89,9 @@ MongoBox.prototype.start = function(callback) {
 
 
     this.process = child_process.spawn(this.options.mongodBinary, args);
-    // console.log("%s %s", this.options.mongodBinary, args.join(" "));
+
+    if (this.options.printCommand)
+      console.log("%s %s", this.options.mongodBinary, args.join(" "));
 
     var self = this;
     this.process.on('close', function(code) {
@@ -128,18 +134,18 @@ MongoBox.prototype._waitTillStarted = function(callback) {
   var self = this;
 
   function tryConnect() {
-    var socket = net.connect({port: self.options.port}, function() {
-      callback();
-    });
-    socket.on('error', function() {
+    net.connect({port: self.options.port}, callback)
+    .on('error', function() {
       attempts += 1;
       if (self.process && attempts < START_CHECK_ATTEMPTS)
-        setTimeout(tryConnect, 250);
-      else callback(new Error('MongoDB did not start.'))
+        return setTimeout(tryConnect, 250);
+
+      callback(new Error('MongoDB did not start.'))
     });
   }
 
   tryConnect();
 }
 
-module.exports.MongoBox = MongoBox;
+MongoBox.MongoBox = MongoBox;
+module.exports = MongoBox;
diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index fda5e21..0000000
--- a/package-lock.json
+++ /dev/null
@@ -1,31 +0,0 @@
-{
-  "name": "mongobox",
-  "version": "0.1.0",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "freeport": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/freeport/-/freeport-1.0.5.tgz",
-      "integrity": "sha1-JV6KuEFwwzuoXZkOghrl9KGpvF0="
-    },
-    "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg=="
-    },
-    "package": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/package/-/package-1.0.1.tgz",
-      "integrity": "sha1-0lofmeJQbcsn1nBLg9yooxLk7cw="
-    },
-    "temporary": {
-      "version": "0.0.8",
-      "resolved": "https://registry.npmjs.org/temporary/-/temporary-0.0.8.tgz",
-      "integrity": "sha1-oYqYHSi6jKNgJ/s8MFOMPst0CsA=",
-      "requires": {
-        "package": ">= 1.0.0 < 1.2.0"
-      }
-    }
-  }
-}
diff --git a/package.json b/package.json
index 95619cd..06b4c5b 100644
--- a/package.json
+++ b/package.json
@@ -15,13 +15,11 @@
     "url": "git://github.com/theorm/mongobox.js.git"
   },
   "dependencies": {
-    "temporary": "0.0.8",
-    "lodash": "4.17.11",
-    "freeport": "1.0.5"
+    "lodash": "^4.17.11",
+    "freeport": "^1.0.5"
   },
-  "devDependencies": {},
   "main": "lib",
   "engines": {
-    "node": ">=0.8.0"
+    "node": ">=5.10.0"
   }
 }