diff --git a/requirements.txt b/requirements.txt
index cdd0a97..24fbc82 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -50,7 +50,7 @@ google-pasta==0.2.0
 grpcio==1.29.1
 h5py==2.10.0
 html5lib==1.0.1
-httplib2==0.14.0
+httplib2==0.19.0
 idna==2.8
 imageio==2.4.1
 importlib-metadata==1.5.0