diff --git a/requirements.txt b/requirements.txt
index 7d711ee..333116f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,5 +14,5 @@ MarkupSafe==1.0
 pytz==2018.5
 requests==2.19.1
 urllib3==1.23
-Werkzeug==0.14.1
+Werkzeug==0.15.3
 WTForms==2.2.1