diff --git a/requirements.txt b/requirements.txt
index f6e9d12..dfd21fd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,6 +64,6 @@ tqdm==4.29.0
 traitlets==4.3.3
 wcwidth==0.2.5
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wincertstore==0.2
 zipp==3.1.0