diff --git a/requirements.txt b/requirements.txt
index 9475580..3a994a8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,4 +16,4 @@ pytz==2016.4
 requests==2.10.0
 six==1.10.0
 urllib3==1.16
-Werkzeug==0.11.10
+Werkzeug==0.15.3