diff --git a/backend/requirements.txt b/backend/requirements.txt
index 4224570..deaac06 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -25,7 +25,7 @@ h11==0.16.0
 httpcore==1.0.9
 httplib2==0.31.2
 httpx==0.28.1
-idna==3.11
+idna==3.18
 joblib==1.5.3
 Mako==1.3.10
 MarkupSafe==3.0.3