diff --git a/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt b/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
index 7235471..15759b0 100644
--- a/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
+++ b/ClassExamples/HeartDiseaseFlask_ManpreetSakshiJaideep/heroku/requirements.txt
@@ -4,7 +4,7 @@ itsdangerous==1.1.0
 Jinja2==2.11.2
 MarkupSafe==1.1.1
 Werkzeug==1.0.1
-numpy==1.16.6
+numpy==1.22.0
 scipy==1.2.3
 scikit-learn>=0.18
 matplotlib>=1.4.3