diff --git a/requirements.txt b/requirements.txt
index 509e0b2..4074925 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -54,4 +54,4 @@ tqdm==4.24.0
 traitlets==4.3.2
 urllib3==1.23
 wcwidth==0.1.7
-Werkzeug==0.14.1
+Werkzeug==0.15.3