diff --git a/requirements.txt b/requirements.txt
index 0f3479e..09c8e9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -82,7 +82,7 @@ toml==0.9.2
 typepy==0.0.20
 typing==3.6.2
 urllib3==1.21.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 wordcloud==1.4.1
 xlrd==1.0.0
 XlsxWriter==1.0.0