diff --git a/requirements.txt b/requirements.txt
index fe3a177..ad99ef4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ Flask==0.12.2
 Flask-Session==0.3.1
 Jinja2==2.10
 MarkupSafe==1.0
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 anytree==2.4.2
 argparse==1.4.0
 autopep8==1.3.3