diff --git a/app/requirements.txt b/app/requirements.txt
index 1673bb4..c87fe2f 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -33,7 +33,7 @@ google-cloud-vision==0.36.0
 googleapis-common-protos==1.5.8
 grpcio==1.19.0
 html5lib==1.0.1
-httplib2==0.12.1
+httplib2==0.18.0
 idna==2.8
 ipaddress==1.0.22
 itsdangerous==1.1.0