diff --git a/requirements-old.txt b/requirements-old.txt
index 3d9237d..a44e3cc 100644
--- a/requirements-old.txt
+++ b/requirements-old.txt
@@ -7,4 +7,4 @@ Jinja2==2.10.1
 Markdown==3.1
 MarkupSafe==1.1.1
 PyYAML==5.4.1
-Werkzeug==0.15.3
+Werkzeug==0.15.5