diff --git a/requirements.txt b/requirements.txt
index fbe5b95..cc04b6c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ fsspec==0.5.2
 funcsigs==1.0.0
 future==0.16.0
 gunicorn==19.9.0
-httplib2==0.18.0
+httplib2==0.19.0
 hyperlink==17.3.1
 idna==2.8
 incremental==16.10.1