diff --git a/requirements.txt b/requirements.txt
index d6aaf42..9c28693 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,4 +28,4 @@ six==1.11.0
 SPARQLWrapper==1.8.2
 traitlets==4.3.2
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3