diff --git a/requirements.txt b/requirements.txt
index e97f51b..d52daf4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,7 +43,7 @@ googleapis-common-protos==1.5.2
 grpc-google-iam-v1==0.11.4
 grpcio==1.7.0
 html5lib==0.9999999
-httplib2==0.10.3
+httplib2==0.19.0
 idna==2.6
 imageio==2.1.2
 jmespath==0.9.3