diff --git a/requirements.txt b/requirements.txt
index 5ed2e28..775c527 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ Flask==0.10.1
 Jinja2==2.8
 Mako==0.9.1
 MarkupSafe==0.18
-Werkzeug==0.11.3
+Werkzeug==0.15.3
 chardet==2.2.1
 checkbox-ng==0.3
 checkbox-support==0.2