diff --git a/requirements.txt b/requirements.txt
index 8f5ee72..ff42cc2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ googleapis-common-protos==1.5.3
 grpcio==1.19.0
 gunicorn==19.7.1
 html5lib==1.0.1
-httplib2==0.11.3
+httplib2==0.19.0
 idna==2.8
 itsdangerous==0.24
 Jinja2==2.10