diff --git a/examples/server/wsgi/requirements.txt b/examples/server/wsgi/requirements.txt
index 1243753..1c18c82 100644
--- a/examples/server/wsgi/requirements.txt
+++ b/examples/server/wsgi/requirements.txt
@@ -12,4 +12,4 @@ pyparsing==2.1.10
 python-engineio
 python-socketio
 six==1.11.0
-Werkzeug==0.15.3
+Werkzeug==0.15.5