diff --git a/requirements.txt b/requirements.txt
index 3efefa5..ea5407a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -31,5 +31,5 @@ ujson==1.35
 urllib3==1.24.1
 watson-developer-cloud==2.8.0
 websocket-client==0.48.0
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wrapt==1.10.11