diff --git a/back-end/requirements.txt b/back-end/requirements.txt
index d548a6a..3f405b3 100644
--- a/back-end/requirements.txt
+++ b/back-end/requirements.txt
@@ -5,7 +5,7 @@ contextlib2==21.6.0
 contextvars==2.4
 fastapi==0.136.1
 h11==0.16.0
-idna==3.13
+idna==3.18
 immutables==0.21
 importlib-metadata==9.0.0
 pydantic==2.12.5