diff --git a/docs/requirements.txt b/docs/requirements.txt
index 925ddd1..817674b 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -11,7 +11,7 @@ colorama==0.4.6
 docutils==0.22.4
 furo==2025.12.19
 h11==0.16.0
-idna==3.19
+idna==3.20
 imagesize==2.0.1
 Jinja2==3.1.6
 markdown-it-py==4.2.0