diff --git a/requirements.txt b/requirements.txt
index 0cd2fe0..e830f72 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,5 +9,5 @@ itsdangerous==0.24
 Jinja2==2.10
 MarkupSafe==1.0
 urllib3==1.22
-Werkzeug==0.12.2
+Werkzeug==0.15.3
 WTForms==2.1