diff --git a/requirements.txt b/requirements.txt
index f5e6688..a5d598e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ gast==0.3.3
 google-pasta==0.2.0
 grpcio==1.28.1
 h5py==2.10.0
-httplib2==0.9.2
+httplib2==0.19.0
 idna==2.6
 importlib-metadata==1.6.0
 importlib-resources==1.4.0