diff --git a/requirements.txt b/requirements.txt
index 88e45ef..9453cb8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,5 +72,5 @@ tqdm==4.23.4
 traitlets==4.3.2
 typing==3.6.4
 wcwidth==0.1.7
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 widgetsnbextension==3.4.1