diff --git a/requirements.txt b/requirements.txt
index e85ed37..cd24748 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,4 +21,4 @@ slacker==0.9.60
 urllib3==1.22
 virtualenv==15.1.0
 websocket-client==0.44.0
-Werkzeug==0.12.2
+Werkzeug==0.15.3