diff --git a/requirements.txt b/requirements.txt
index 90d5382..c94f6c7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ google-images-download==2.3.0
 grpcio==1.15.0
 h5py==2.8.0
 html5lib==0.9999999
-httplib2==0.11.3
+httplib2==0.18.0
 humanize==0.5.1
 idna==2.7
 ipykernel==4.8.1