diff --git a/requirements.txt b/requirements.txt
index 423e011..f281f2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@ itsdangerous==1.1.0
 Jinja2==2.10
 MarkupSafe==1.1.0
 Pillow==5.4.1
-Werkzeug==0.14.1
+Werkzeug==0.15.3