diff --git a/requirements.txt b/requirements.txt
index 839a4bc..2b462d9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ Flask-Admin==1.5.1
 Flask-SQLAlchemy==2.3.2
 Flask-WTF==0.14.2
 google-api-python-client==1.6.6
-httplib2==0.11.3
+httplib2==0.19.0
 itsdangerous==0.24
 Jinja2==2.10
 MarkupSafe==1.0