diff --git a/requirements.txt b/requirements.txt
index 87c365f..0bb95af 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,4 @@ Jinja2>=2.10.1
 MarkupSafe==1.0
 protobuf==3.6.0
 six==1.11.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3