diff --git a/dev-ruby/thor/thor-1.3.0.ebuild b/dev-ruby/thor/thor-1.3.0.ebuild
index a9a663d09930e..6ce820d5822df 100644
--- a/dev-ruby/thor/thor-1.3.0.ebuild
+++ b/dev-ruby/thor/thor-1.3.0.ebuild
@@ -1,9 +1,9 @@
-# Copyright 2000-2023 Gentoo Authors
+# Copyright 2000-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-USE_RUBY="ruby31 ruby32"
+USE_RUBY="ruby31 ruby32 ruby33"
 
 RUBY_FAKEGEM_RECIPE_TEST="rspec3"
 RUBY_FAKEGEM_DOCDIR="rdoc"