diff --git a/web_app/requirements.txt b/web_app/requirements.txt
index da99654..dce298e 100644
--- a/web_app/requirements.txt
+++ b/web_app/requirements.txt
@@ -44,6 +44,6 @@ thrift==0.10.0
 thriftpy==0.3.9
 tornado==4.5.1
 visitor==0.1.3
-Werkzeug==0.15.3
+Werkzeug==0.15.5
 wheel==0.24.0
 WTForms==2.1