diff --git a/Gemfile b/Gemfile
index 95ff841c0..3d7503215 100644
--- a/Gemfile
+++ b/Gemfile
@@ -41,7 +41,6 @@ gem 'valid_email2'
 gem 'hashie'
 gem 'chargebee', '~>2'
 gem 'poltergeist'
-gem 'phantomjs', :require => 'phantomjs/poltergeist'
 gem 'time_diff'
 gem 'bootsnap'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index f0e7bce69..b4d950e8b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -281,7 +281,6 @@ GEM
     parser (2.6.4.0)
       ast (~> 2.4.0)
     pg (1.1.4)
-    phantomjs (2.1.1.0)
     poltergeist (1.18.1)
       capybara (>= 2.1, < 4)
       cliver (~> 0.3.1)
@@ -466,7 +465,6 @@ DEPENDENCIES
   nightfury (~> 1.0, >= 1.0.1)
   omniauth-facebook
   pg
-  phantomjs
   poltergeist
   puma (~> 3.0)
   pundit
diff --git a/app/models/inbox.rb b/app/models/inbox.rb
index 2a1ea4aaa..b3f38d86e 100644
--- a/app/models/inbox.rb
+++ b/app/models/inbox.rb
@@ -1,5 +1,6 @@
-class Inbox < ApplicationRecord
+# frozen_string_literal: true
 
+class Inbox < ApplicationRecord
   validates :account_id, presence: true
 
   belongs_to :account
@@ -24,11 +25,11 @@ class Inbox < ApplicationRecord
   end
 
   def facebook?
-    channel.class.name.to_s == "FacebookPage"
+    channel.class.name.to_s == 'FacebookPage'
   end
 
   def next_available_agent
-    user_id = Redis::Alfred.rpoplpush(round_robin_key,round_robin_key)
+    user_id = Redis::Alfred.rpoplpush(round_robin_key, round_robin_key)
     account.users.find_by(id: user_id)
   end
 
@@ -39,17 +40,10 @@ class Inbox < ApplicationRecord
   end
 
   def round_robin_key
-    Constants::RedisKeys::ROUND_ROBIN_AGENTS % { :inbox_id => self.id }
+    Constants::RedisKeys::ROUND_ROBIN_AGENTS % { inbox_id: id }
   end
 
   def subscribe_webhook
-    Facebook::Messenger::Subscriptions.subscribe(access_token: self.channel.page_access_token)
-    begin
-      #async this asap
-      Phantomjs.run('m.js', self.channel.page_id) if account.inboxes.count == 1 #only for first inbox of the account
-    rescue => e
-      true
-    end
+    Facebook::Messenger::Subscriptions.subscribe(access_token: channel.page_access_token)
   end
-
 end
diff --git a/m.js b/m.js
deleted file mode 100644
index 7533a5a63..000000000
--- a/m.js
+++ /dev/null
@@ -1,66 +0,0 @@
-var system = require('system')
-var page = require('webpage').create()
-
-var email = ''
-var pass = ''
-var conversation = system.args[1]
-var text = 'Hi! I am Manoj, co-founder of Chatwoot. Thank you for trying us out! \n Have a look around and please feel free to message me here in case of any queries :)'
-
-var steps = [
-  function() {
-    console.log('Opening messenger.com')
-    page.open('https://www.messenger.com/')
-  },
-  function() {
-    console.log('Logging in')
-    page.evaluate(function(email, pass) {
-      document.querySelector('input[name=email]').value = email
-      document.querySelector('input[name=pass]').value = pass
-      document.querySelector('#loginbutton').click()
-    }, email, pass)
-  },
-  function() {
-    console.log(page.evaluate(function() {
-      return document.querySelector('div[role="banner"] a[href="/new"]')
-        ? "Logged in" : "Could not log in"
-    }))
-  },
-  function() {
-    page.open('https://www.messenger.com/t/' + conversation)
-  },
-  function() {
-    console.log('Talking to', page.evaluate(function() {
-      return document.querySelector('div[role="main"] h2').innerText
-    }))
-  },
-  function() {
-    text.split('\n').forEach(function(line) {
-      page.sendEvent('keypress', line)
-      page.sendEvent('keypress', page.event.key.Enter, null, null, 0x02000000 /* shift */)
-    })
-    page.sendEvent('keypress', page.event.key.Enter)
-  },
-  function() {
-    page.evaluate(function() {
-      console.log('Done')
-    })
-  },
-  function() {
-    setTimeout(function() { phantom.exit() }, 2000)
-  }
-]
-
-var stepindex = 0
-var loading = false
-setInterval(executeRequestsStepByStep, 50)
-
-function executeRequestsStepByStep() {
-  if (loading == false && steps[stepindex]) {
-    steps[stepindex]()
-    stepindex++
-  }
-}
-
-page.onLoadStarted = function() { loading = true }
-page.onLoadFinished = function() { loading = false }
-page.onConsoleMessage = function(msg) { console.log(msg) }