diff --git a/requirements.txt b/requirements.txt
index 4ad2134..2e8d752 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,4 +19,4 @@ pytz==2018.7
 redis==2.10.6
 six==1.11.0
 vine==1.1.4
-Werkzeug==0.14.1
+Werkzeug==0.15.5