diff --git a/requirements.txt b/requirements.txt
index eb9ff45..3100453 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,4 +25,4 @@ retrying==1.3.3
 six==1.12.0
 traitlets==4.3.2
 urllib3==1.24.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3