diff --git a/requirements.txt b/requirements.txt
index f6484b08..0f9792a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ google-auth-httplib2==0.0.3
 greenlet==0.4.15
 gunicorn==19.9.0
 html5lib==0.9999999
-httplib2==0.12.3
+httplib2==0.19.0
 itsdangerous==0.24
 Jinja2==2.10.1
 Mako==1.0.4