diff --git a/requirements.txt b/requirements.txt
index b194aec..7b2f75f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,5 +34,5 @@ six==1.10.0
 SQLAlchemy==1.1.13
 traitlets==4.3.2
 wcwidth==0.1.7
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 WTForms==2.1