diff --git a/nimvelo/__init__.py b/nimvelo/__init__.py
index f0c76bb..32540e3 100644
--- a/nimvelo/__init__.py
+++ b/nimvelo/__init__.py
@@ -8,10 +8,11 @@
 import sys
 import math
 import requests
-import json
 import time
 import logging
 
+import simplejson as json
+
 from stream import Stream
 
 logger = logging.getLogger(__name__)
diff --git a/nimvelo/stream/__init__.py b/nimvelo/stream/__init__.py
index ffb8962..844e4fd 100644
--- a/nimvelo/stream/__init__.py
+++ b/nimvelo/stream/__init__.py
@@ -7,10 +7,11 @@
 
 import multiprocessing
 import requests
-import json
 import time
 import logging
 
+import simplejson as json
+
 logger = logging.getLogger(__name__)
 
 
diff --git a/setup.py b/setup.py
index ac5bdae..ba8b851 100755
--- a/setup.py
+++ b/setup.py
@@ -11,13 +11,13 @@ from setuptools import setup
 setup(
     name='nimvelo',
     description='Python 2.7 client library for the Nimvelo/Sipcentric API',
-    version='0.1.3',
+    version='0.1.4',
     url='https://github.com/Nimvelo/python-client',
     author='David Maitland',
     author_email='david.maitland@nimvelo.com',
     license='MIT',
     keywords='nimvelo sipcentric voip pbx sms sip',
     packages=['nimvelo', 'nimvelo/stream'],
-    requires=['math', 'json', 'logging', 'time'],
+    requires=['math', 'json', 'logging', 'time', 'simplejson'],
     install_requires=['requests']
 )