diff --git a/requirements.txt b/requirements.txt
index 804420b..1d979f6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ Flask-Compress==1.4.0
 itsdangerous==0.24
 Jinja2==2.8
 MarkupSafe==0.23
-Werkzeug==0.11.3
+Werkzeug==0.15.3
 wheel==0.24.0
 gunicorn==19.9.0