diff --git a/requirements.txt b/requirements.txt
index 301dbfa..e912d85 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.3.0
 grpcio==1.16.1
 h5py==2.8.0
-httplib2==0.12.0
+httplib2==0.18.0
 idna==2.7
 ipykernel==5.1.0
 ipython==7.2.0