diff --git a/website/requirements.txt b/website/requirements.txt
index 9bbc5b2..5614ff5 100644
--- a/website/requirements.txt
+++ b/website/requirements.txt
@@ -31,7 +31,7 @@ six==1.11.0
 SQLAlchemy==1.1.14
 urllib3==1.22
 visitor==0.1.3
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 WTForms==2.1
 
 # requirements for Heroku