diff --git a/ch16-deployment/requirements.txt b/ch16-deployment/requirements.txt
index d81f312..c76f0b9 100644
--- a/ch16-deployment/requirements.txt
+++ b/ch16-deployment/requirements.txt
@@ -8,7 +8,7 @@ Django==5.0.6
 django-cache-url==3.4.5
 django-crispy-forms==2.2
 environs==11.0.0
-gunicorn==22.0.0
+gunicorn==23.0.0
 marshmallow==3.21.3
 mypy-extensions==1.0.0
 packaging==24.1