diff --git a/requirements.txt b/requirements.txt
index 592a1f1..cc15e5d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ Flask-Login==0.5.0
 Flask-SQLAlchemy==2.4.1
 Flask-WTF==0.14.3
 gunicorn==20.0.4
-httplib2==0.17.0
+httplib2==0.19.0
 idna==2.9
 itsdangerous==1.1.0
 Jinja2==2.11.1