diff --git a/requirements.txt b/requirements.txt
index 92ebff2..3e167bb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -45,4 +45,4 @@ six==1.10.0
 thrift==0.9.2
 toposort==1.1
 traitlets==4.1.0
-Werkzeug==0.11.3
+Werkzeug==0.15.3