diff --git a/requirements_flask_app.txt b/requirements_flask_app.txt
index 6daf56b1a..62a76df43 100644
--- a/requirements_flask_app.txt
+++ b/requirements_flask_app.txt
@@ -2,7 +2,7 @@ Beaker==1.7.0
 Flask==0.10.1
 Jinja2==2.7.3
 MarkupSafe==0.23
-Werkzeug==0.14.1
+Werkzeug==0.15.5
 isodate==0.5.1
 itsdangerous==0.24
 requests==2.7.0