diff --git a/requirements.txt b/requirements.txt
index 48b9a19..fc823b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,4 +20,4 @@ requests==2.20.0
 six==1.11.0
 tornado==5.0.2
 urllib3==1.22
-Werkzeug==0.14.1
+Werkzeug==0.15.3