diff --git a/dev-ruby/idn-ruby/idn-ruby-0.1.5.ebuild b/dev-ruby/idn-ruby/idn-ruby-0.1.5.ebuild
index 37e0d58f64df5..36ee2decbb3db 100644
--- a/dev-ruby/idn-ruby/idn-ruby-0.1.5.ebuild
+++ b/dev-ruby/idn-ruby/idn-ruby-0.1.5.ebuild
@@ -1,8 +1,9 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-USE_RUBY="ruby31 ruby32 ruby33 ruby34"
+
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 RUBY_FAKEGEM_EXTRADOC="CHANGES README.md"