diff --git a/requirements.txt b/requirements.txt
index a21bb4d..1e9e436 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,4 +26,4 @@ six==1.11.0
 suds-jurko==0.6
 urllib3==1.24.1
 WebOb==1.8.4
-Werkzeug==0.14.1
+Werkzeug==0.15.3