diff --git a/requirements.txt b/requirements.txt
index cd81cdb..39836ba 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,4 +15,4 @@ pytz==2018.7
 requests==2.21.0
 six==1.12.0
 urllib3==1.24.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3