diff --git a/requirements.txt b/requirements.txt
index 4f2d05d..9e894e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,4 +20,4 @@ six==1.10.0
 SQLAlchemy==1.0.14
 tornado==4.4
 tzlocal==1.2.2
-Werkzeug==0.11.10
+Werkzeug==0.15.3