diff --git a/chapter-4-examples/code-first-using-apiflask/requirements.txt b/chapter-4-examples/code-first-using-apiflask/requirements.txt
index faf547b..9f555b0 100644
--- a/chapter-4-examples/code-first-using-apiflask/requirements.txt
+++ b/chapter-4-examples/code-first-using-apiflask/requirements.txt
@@ -9,4 +9,4 @@ MarkupSafe==2.1.5
 pydantic==2.6.1
 pydantic_core==2.16.2
 typing_extensions==4.9.0
-Werkzeug==3.0.1
+Werkzeug==3.0.3