diff --git a/requirements.txt b/requirements.txt
index 569d870..e181c70 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ google-pasta==0.1.7
 gpg==1.10.0
 grpcio==1.22.0
 h5py==2.10.0
-httplib2==0.9.2
+httplib2==0.19.0
 idna==2.8
 imageio==2.5.0
 importlib-metadata==1.4.0