diff --git a/requirements.txt b/requirements.txt
index 1863bb9..15449a4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -60,6 +60,6 @@ SQLAlchemy==1.1.4
 urllib3==1.9.1
 vboxapi==1.0
 vine==1.1.3
-Werkzeug==0.11.11
+Werkzeug==0.15.3
 wstools==0.4.3
 gunicorn==20.1.0