diff --git a/requirements.txt b/requirements.txt
index 8eeae7f..18fe7fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,5 +64,5 @@ typing==3.6.4
 urllib3==1.22
 virtualenv==15.1.0
 wcwidth==0.1.7
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 zope.interface==4.4.3