diff --git a/Deploy_App_to_Web/Heroku_App/requirements.txt b/Deploy_App_to_Web/Heroku_App/requirements.txt
index eb2424c5..3e7f2529 100644
--- a/Deploy_App_to_Web/Heroku_App/requirements.txt
+++ b/Deploy_App_to_Web/Heroku_App/requirements.txt
@@ -8,7 +8,7 @@ dash-table==4.7.0
 Flask==2.3.2
 Flask-Compress==1.5.0
 future==0.18.2
-gunicorn==22.0.0
+gunicorn==23.0.0
 itsdangerous==1.1.0
 Jinja2==3.1.4
 MarkupSafe==1.1.1