diff --git a/requirements.txt b/requirements.txt
index cc2dca2..8ee9429 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ google-auth-oauthlib==0.4.1
 google-pasta==0.2.0
 grpcio==1.27.2
 h5py==2.10.0
-httplib2==0.9.2
+httplib2==0.19.0
 idna==2.6
 importlib-metadata==1.5.0
 importlib-resources==1.0.2