diff --git a/requirements.txt b/requirements.txt
index e22bd23..9b2a5e6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,5 +28,5 @@ python-dateutil==2.6.0
 pytz==2016.10
 six==1.10.0
 SQLAlchemy==1.1.9
-Werkzeug==0.12
+Werkzeug==0.15.3
 networkx==2.1