diff --git a/card-gen-backend/requirements.txt b/card-gen-backend/requirements.txt
index a9bab32..8da99c8 100644
--- a/card-gen-backend/requirements.txt
+++ b/card-gen-backend/requirements.txt
@@ -6,7 +6,7 @@ docopt==0.6.2
 Flask==3.0.0
 Flask-Cors==4.0.0
 gunicorn==21.2.0
-idna==3.4
+idna==3.7
 itsdangerous==2.1.2
 Jinja2==3.1.3
 MarkupSafe==2.1.3