diff --git a/dev-ruby/warning/warning-1.5.0.ebuild b/dev-ruby/warning/warning-1.5.0.ebuild
index c9333b76e0932..2e3157a6467b9 100644
--- a/dev-ruby/warning/warning-1.5.0.ebuild
+++ b/dev-ruby/warning/warning-1.5.0.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_EXTRADOC="CHANGELOG README.rdoc"
 RUBY_FAKEGEM_GEMSPEC="warning.gemspec"