diff --git a/docker/requirements.txt b/docker/requirements.txt
index 00a4934..a1cfd91 100644
--- a/docker/requirements.txt
+++ b/docker/requirements.txt
@@ -65,5 +65,5 @@ tqdm==4.19.4
 traitlets==4.3.2
 urllib3==1.22
 wcwidth==0.1.7
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 widgetsnbextension==3.0.8