diff --git a/requirements.txt b/requirements.txt
index c998d92..a9a3db4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,4 +28,4 @@ retrying==1.3.3
 six==1.11.0
 traitlets==4.3.2
 urllib3==1.24.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3