diff --git a/requirements.txt b/requirements.txt
index 70e6fe2..fe1f425 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,4 +12,4 @@ six==1.11.0
 slackclient==1.1.2
 urllib3==1.22
 websocket-client==0.46.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3