diff --git a/requirements.txt b/requirements.txt
index 2c166a1..d7a6e89 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,6 +11,6 @@ Jinja2==2.9.6
 MarkupSafe==1.0
 pandas==0.21.0
 python-dateutil==2.6.1
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 xlrd==1.1.0
 PyStemmer==1.3.0