diff --git a/setup.py b/setup.py
index 7fe46e4..92b237b 100644
--- a/setup.py
+++ b/setup.py
@@ -16,6 +16,7 @@ install_requires = [
     'six',
     'python-dateutil',
     'requests',
+    'simplejson',
 ]
 
 setup(