diff --git a/v2m/13/hello-world/requirements.txt b/v2m/13/hello-world/requirements.txt
index e3c7d34c..95361ed7 100644
--- a/v2m/13/hello-world/requirements.txt
+++ b/v2m/13/hello-world/requirements.txt
@@ -1,6 +1,6 @@
 Click==7.0
 Flask==1.0.2
 itsdangerous==1.1.0
-Jinja2==2.11.3
+Jinja2==3.1.6
 MarkupSafe==1.1.1
 Werkzeug==0.15.2