diff --git a/requirements.txt b/requirements.txt
index eac2173..a2a227b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,4 +27,4 @@ retrying==1.3.3
 six==1.11.0
 traitlets==4.3.2
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3