diff --git a/requirements.txt b/requirements.txt
index 1d0a909..df95fcd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,5 +35,5 @@ six==1.11.0
 SQLAlchemy==1.2.14
 urllib3==1.24.1
 vine==1.2.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 zope.interface==4.6.0