diff --git a/dev-ruby/buftok/buftok-0.3.0-r1.ebuild b/dev-ruby/buftok/buftok-0.3.0-r1.ebuild
index 4e5088b3dd3b8..13a18c39410e9 100644
--- a/dev-ruby/buftok/buftok-0.3.0-r1.ebuild
+++ b/dev-ruby/buftok/buftok-0.3.0-r1.ebuild
@@ -1,8 +1,9 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 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="CONTRIBUTING.md README.md"