diff --git a/requirements.txt b/requirements.txt
index 30feede..e375b8e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Flask==1.0.2
 gunicorn==19.9.0
-httplib2==0.18.0
+httplib2==0.19.0
 Jinja2==2.10
 Werkzeug==0.15.3
 requests==2.20.0