diff --git a/requirements.txt b/requirements.txt
index 16f02a5..ebd9339 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,4 +17,4 @@ pytz==2017.2
 requests==2.18.4
 six==1.10.0
 urllib3==1.22
-Werkzeug==0.12.2
+Werkzeug==0.15.3