diff --git a/requirements.txt b/requirements.txt
index 449a5ad..2aad456 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ Flask==0.10.1
 Jinja2==2.8
 MarkupSafe==0.23
 Twisted==16.1.1
-Werkzeug==0.11.9
+Werkzeug==0.15.3
 argparse==1.2.1
 itsdangerous==0.24
 wsgiref==0.1.2