diff --git a/app/requirements.txt b/app/requirements.txt
index 74d0c4a..1855bb4 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -69,5 +69,5 @@ traitlets==4.3.2
 urllib3==1.24.1
 wcwidth==0.1.7
 webencodings==0.5.1
-Werkzeug==0.14.1
+Werkzeug==0.15.5
 wincertstore==0.2