diff --git a/requirements.txt b/requirements.txt
index c7e5c24..ed148fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,5 +33,5 @@ six==1.11.0
 SQLAlchemy==1.2.11
 urllib3==1.23
 URLObject==2.4.3
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 WTForms==2.2.1