diff --git a/chapter-4/9-passing-request-parameters-including-inputs/requirements.txt b/chapter-4/9-passing-request-parameters-including-inputs/requirements.txt
index 3313d974..fd728788 100644
--- a/chapter-4/9-passing-request-parameters-including-inputs/requirements.txt
+++ b/chapter-4/9-passing-request-parameters-including-inputs/requirements.txt
@@ -1,3 +1,3 @@
 Flask==3.0.0
 pytest==7.4.2
-Werkzeug==3.0.0
\ No newline at end of file
+Werkzeug==3.0.1
\ No newline at end of file