diff --git a/bak/requirements.txt b/bak/requirements.txt
index e71cf59..6cd4971 100644
--- a/bak/requirements.txt
+++ b/bak/requirements.txt
@@ -60,7 +60,7 @@ googleapis-common-protos==1.5.3
 graphviz==0.8.4
 grpcio==1.14.2
 html5lib==1.0.1
-httplib2==0.11.3
+httplib2==0.19.0
 hyperlink==18.0.0
 hypothesis==2.0.0
 idna==2.6