diff --git a/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt b/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
index 7235471..e87538f 100644
--- a/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
+++ b/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
@@ -1,4 +1,4 @@
-Flask==1.1.2
+Flask==2.3.2
 gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.11.2