diff --git a/requirements.txt b/requirements.txt
index b69db2a..95d2a79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,4 +30,4 @@ requests==2.19.1
 six==1.11.0
 srvlookup==2.0.0
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3