diff --git a/requirements.txt b/requirements.txt
index ffe6c42..294e8a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,4 +35,4 @@ six==1.12.0
 traitlets==4.3.2
 ua-parser==0.8.0
 urllib3==1.24.3
-Werkzeug==0.15.2
+Werkzeug==0.15.3