diff --git a/requirements.txt b/requirements.txt
index d19e293..8f3a196 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -65,7 +65,7 @@ grpcio==1.12.0
 h5py==2.8.0
 hmmlearn==0.2.0
 html5lib==0.9999999
-httplib2==0.10.3
+httplib2==0.19.0
 hyperlink==18.0.0
 idna==2.6
 incremental==17.5.0