diff --git a/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt b/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
index 7235471..d0aaa1e 100644
--- a/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
+++ b/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
@@ -3,7 +3,7 @@ gunicorn==19.9.0
 itsdangerous==1.1.0
 Jinja2==2.11.2
 MarkupSafe==1.1.1
-Werkzeug==1.0.1
+Werkzeug==2.2.3
 numpy==1.16.6
 scipy==1.2.3
 scikit-learn>=0.18