diff --git a/package.json b/package.json
index 8f356e62df..9408ec43d2 100644
--- a/package.json
+++ b/package.json
@@ -189,6 +189,7 @@
     "less": "^2.5.1",
     "loopback-component-explorer": "^2.1.1",
     "merge-stream": "^1.0.0",
+    "pm2": "^2.10.2",
     "proxyquire": "^1.7.10",
     "react-hot-loader": "^1.3.0",
     "redux-thunk": "^2.2.0",
diff --git a/pm2Start.js b/pm2Start.js
index f648b756ad..b948aaec63 100644
--- a/pm2Start.js
+++ b/pm2Start.js
@@ -1,21 +1,18 @@
 require('dotenv').load();
-var pm2 = require('pm2');
-var nodemailer = require('nodemailer');
-var moment = require('moment-timezone');
-var _ = require('lodash');
+const pm2 = require('pm2');
 
-var instances = process.env.INSTANCES || 1;
-var serverName = process.env.SERVER_NAME || 'server';
-var maxMemory = process.env.MAX_MEMORY || '390M';
+const instances = process.env.INSTANCES || 1;
+const serverName = process.env.SERVER_NAME || 'server';
+const maxMemory = process.env.MAX_MEMORY || '390M';
 
 pm2.connect(function() {
   pm2.start({
     name: serverName,
     script: 'server/production-start.js',
-    'exec_mode': 'cluster',
+    exec_mode: 'cluster',
     instances: instances,
-    'max_memory_restart': maxMemory,
-    'NODE_ENV': 'production'
+    max_memory_restart: maxMemory,
+    NODE_ENV: 'production'
   }, function() {
     console.log(
       'pm2 started %s with %s instances at %s max memory',