diff --git a/dev-ruby/slop/slop-4.10.1.ebuild b/dev-ruby/slop/slop-4.10.1.ebuild
index 5796e4a5e0116..26690926b449b 100644
--- a/dev-ruby/slop/slop-4.10.1.ebuild
+++ b/dev-ruby/slop/slop-4.10.1.ebuild
@@ -1,8 +1,9 @@
-# Copyright 1999-2025 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_TASK_DOC=""
 RUBY_FAKEGEM_EXTRADOC="CHANGELOG.md README.md"