diff --git a/lib/nightmare.js b/lib/nightmare.js
index d4d02ab9..76b3ed7f 100644
--- a/lib/nightmare.js
+++ b/lib/nightmare.js
@@ -21,7 +21,8 @@ var sliced = require('sliced')
 var child = require('./ipc')
 var once = require('once')
 var split2 = require('split2')
-var defaults = require('defaults')
+var defaults = require('lodash').defaultsDeep
+
 var noop = function() {}
 var keys = Object.keys
 
diff --git a/lib/runner.js b/lib/runner.js
index 36ab45c9..c48d11b5 100644
--- a/lib/runner.js
+++ b/lib/runner.js
@@ -5,7 +5,8 @@
 var parent = require('./ipc')(process)
 var electron = require('electron')
 var BrowserWindow = electron.BrowserWindow
-var defaults = require('deep-defaults')
+var defaults = require('lodash').defaultsDeep
+
 var join = require('path').join
 var sliced = require('sliced')
 var renderer = require('electron').ipcMain
diff --git a/package.json b/package.json
index 0ea57a75..c0c7f7b8 100644
--- a/package.json
+++ b/package.json
@@ -19,12 +19,12 @@
   "description": "A high-level browser automation library.",
   "dependencies": {
     "debug": "^2.2.0",
-    "deep-defaults": "^1.0.3",
     "defaults": "^1.0.2",
     "electron": "^1.8.4",
     "enqueue": "^1.0.2",
     "function-source": "^0.1.0",
     "jsesc": "^0.5.0",
+    "lodash": "^4.17.10",
     "minstache": "^1.2.0",
     "mkdirp": "^0.5.1",
     "multiline": "^1.0.2",
@@ -45,7 +45,7 @@
     "eslint-plugin-prettier": "^2.6.0",
     "express": "4.16.2",
     "husky": "^0.14.3",
-    "mocha": "^2.3.0",
+    "mocha": "^5.2.0",
     "mocha-generators": "^1.2.0",
     "multer": "1.1.0",
     "pngjs": "^2.2.0",