diff --git a/requirements.txt b/requirements.txt
index e121be0..38edc6b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ Flask-SocketIO==3.3.1
 gcloud==0.17.0
 googleapis-common-protos==1.5.8
 gunicorn==19.9.0
-httplib2==0.12.1
+httplib2==0.19.0
 idna==2.8
 itsdangerous==1.1.0
 Jinja2==2.10