diff --git a/requirements.txt b/requirements.txt
index 46f4b04..6898eb8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,4 +53,4 @@ toolz==0.9.0
 traitlets==4.3.2
 urllib3==1.24.1
 wcwidth==0.1.7
-Werkzeug==0.14.1
+Werkzeug==0.15.3