diff --git a/requirements.txt b/requirements.txt
index b602da1..8d29156 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -43,5 +43,5 @@ six==1.11.0
 Twisted==17.9.0
 urllib3==1.22
 w3lib==1.19.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 zope.interface==4.4.3