diff --git a/requirements.txt b/requirements.txt
index 30f7e4f..3b6ac07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ itsdangerous==0.24
 Jinja2==2.10
 jsonschema==2.6.0
 MarkupSafe==1.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3