diff --git a/requirements.txt b/requirements.txt
index 9c2c1de7..3f763b83 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,6 @@ Flask==0.12
 python-dateutil==2.6.1
 s3transfer==0.1.10
 six==1.10.0
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 gunicorn==19.7.1
 Flask-Mail==0.9.1