diff --git a/requirements.txt b/requirements.txt
index fd1d484..8ba190e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,4 +33,4 @@ six==1.11.0
 SQLAlchemy==1.2.2
 urllib3==1.23
 vine==1.1.4
-Werkzeug==0.14.1
+Werkzeug==0.15.3