diff --git a/owasp-top10-2021-apps/a3/gossip-world/app/requirements.txt b/owasp-top10-2021-apps/a3/gossip-world/app/requirements.txt
index 6783a729f..406a545d0 100644
--- a/owasp-top10-2021-apps/a3/gossip-world/app/requirements.txt
+++ b/owasp-top10-2021-apps/a3/gossip-world/app/requirements.txt
@@ -1,6 +1,6 @@
 Click==7.0
 dominate==2.3.4
-Flask==1.0.2
+Flask==3.1.3
 Flask-Bootstrap==3.3.7.1
 Flask-Cors==3.0.7
 itsdangerous==1.1.0