diff --git a/requirements.txt b/requirements.txt
index 2f8adb5..25c2d8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,4 @@ lxml==4.1.1
 MarkupSafe==1.0
 requests==2.18.4
 urllib3>=1.23
-Werkzeug==0.12.2
+Werkzeug==0.15.3