diff --git a/requirements.txt b/requirements.txt
index 89b220e..5e9170a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ grpcio==1.16.1
 gtimer==1.0.0b5
 git+https://github.com/openai/gym.git@49cd48020f6760630a7317cb3529a22de6f12f2e#[all]
 h5py==2.8.0
-httplib2==0.12.0
+httplib2==0.19.0
 idna==2.7
 imageio==2.4.1
 jmespath==0.9.3