diff --git a/requirements.txt b/requirements.txt
index 83e1d4a..1206c34 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@ gunicorn==19.7.1
 itsdangerous==0.24
 Jinja2==2.9.6
 MarkupSafe==1.0
-Werkzeug==0.12.2
+Werkzeug==0.15.5