diff --git a/requirements.txt b/requirements.txt
index 6f9dd0c..237d437 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -37,7 +37,7 @@ Flask-SQLAlchemy==2.0
 Flask-WTF==0.11
 gnureadline==6.3.3
 gunicorn==19.2.1
-httplib2==0.9
+httplib2==0.18.0
 image==1.3.4
 ipaddr==2.1.11
 ipython==3.1.0