diff --git a/submit-cron/requirements.txt b/submit-cron/requirements.txt
index 1ea11d2d4..d28dd1ed7 100644
--- a/submit-cron/requirements.txt
+++ b/submit-cron/requirements.txt
@@ -20,7 +20,7 @@ flask-restx==1.3.2
 Flask-SQLAlchemy==3.1.1
 Flask==3.1.2
 gunicorn==23.0.0
-idna==3.11
+idna==3.15
 importlib_resources==6.5.2
 itsdangerous==2.2.0
 Jinja2==3.1.6