diff --git a/requirements.txt b/requirements.txt
index 520a22c..4344594 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -35,4 +35,4 @@ six==1.11.0
 SQLAlchemy>=1.3.0
 typed-ast==1.1.0
 urllib3>=1.24.2
-Werkzeug==0.14.1
+Werkzeug==0.15.3