diff --git a/requirements.txt b/requirements.txt
index e3c41c1..523b966 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ s3transfer==0.1.10
 schedule==0.4.2
 six==1.10.0
 smmap2==2.0.1
-Werkzeug==0.11.15
+Werkzeug==0.15.3
 
 gunicorn
 gevent