diff --git a/cloud-to-cloud-network-test/backend/requirements.txt b/cloud-to-cloud-network-test/backend/requirements.txt
index 62e3d80..6479c27 100644
--- a/cloud-to-cloud-network-test/backend/requirements.txt
+++ b/cloud-to-cloud-network-test/backend/requirements.txt
@@ -38,7 +38,7 @@ Twisted-Names==13.2.0
 Twisted-Web==13.2.0
 urllib3==1.21.1
 virtualenv==1.11.4
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 wheel==0.24.0
 zope.interface==4.0.5
 Flask-Cors==3.0.3