diff --git a/requirements.txt b/requirements.txt
index fa095d4..6f9915a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask==0.10.1
 Jinja2==2.7.1
 MarkupSafe==0.18
-Werkzeug==0.9.4
+Werkzeug==0.15.5
 argparse==1.2.1
 itsdangerous==0.23
 wsgiref==0.1.2