diff --git a/requirements.txt b/requirements.txt
index 137f7b2..72b415a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,5 +7,5 @@ itsdangerous==0.24
 Jinja2==2.8
 Markdown==2.6.5
 MarkupSafe==0.23
-Werkzeug==0.11.2
+Werkzeug==0.15.5
 wheel==0.24.0