diff --git a/README.rst b/README.rst
index 6bbe350..487af01 100644
--- a/README.rst
+++ b/README.rst
@@ -14,15 +14,9 @@ fbchat
 .. image:: https://pypip.in/license/fbchat/badge.svg?style=flat
     :target: https://pypi.python.org/pypi/fbchat
 
-Facebook Chat (`Messenger <https://www.messenger.com/>`__) for Python. No XMPP or API key is needed. Just use your ID and PASSWORD.
-
-This project was inspired by `facebook-chat-api <https://github.com/Schmavery/facebook-chat-api>`__.
-
-
-Documentation
-=============
-
+Facebook Chat (`Messenger <https://www.messenger.com/>`__) for Python. This project was inspired by `facebook-chat-api <https://github.com/Schmavery/facebook-chat-api>`__.
 
+**No XMPP or API key is needed**. Just use your ID and PASSWORD.
 
 
 Installation
diff --git a/fbchat/client.py b/fbchat/client.py
index 2423de2..0def415 100644
--- a/fbchat/client.py
+++ b/fbchat/client.py
@@ -10,21 +10,13 @@
     :license: BSD, see LICENSE for more details.
 """
 
-import re
-import json
-import random
 import requests
-
-from time import time
 from uuid import uuid1
-from random import random
+from random import random, choice
 from bs4 import BeautifulSoup as bs
 
 from .utils import *
 
-CHROME = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36"
-SAFARI = "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/601.1.10 (KHTML, like Gecko) Version/8.0.5 Safari/601.1.10"
-
 class Client(object):
     """A client for the Facebook Chat (Messenger).
 
@@ -53,7 +45,7 @@ class Client(object):
         self._session = requests.session()
 
         if not user_agent:
-            user_agent = CHROME
+            user_agent = choice(USER_AGENTS)
 
         self._header = {
             'Content-Type' : 'application/x-www-form-urlencoded',
diff --git a/fbchat/utils.py b/fbchat/utils.py
index 88d677e..b45000d 100644
--- a/fbchat/utils.py
+++ b/fbchat/utils.py
@@ -1,3 +1,16 @@
+import re
+import json
+from time import time
+
+USER_AGENTS = [
+    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
+    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/601.1.10 (KHTML, like Gecko) Version/8.0.5 Safari/601.1.10",
+    "Mozilla/5.0 (Windows NT 6.3; WOW64; ; NCT50_AAP285C84A1328) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
+    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
+    "Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11",
+    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1092.0 Safari/536.6"
+]
+
 def now():
     return int(time())