diff --git a/requirements.txt b/requirements.txt
index 193d581..4787a76 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ itsdangerous==0.24
 Jinja2==2.8
 MarkupSafe==0.23
 six==1.10.0
-Werkzeug==0.11.8
+Werkzeug==0.15.3