diff --git a/dev-ruby/css_parser/css_parser-1.16.0.ebuild b/dev-ruby/css_parser/css_parser-1.16.0.ebuild
index 34a6b61fe253b..220acb7872bb7 100644
--- a/dev-ruby/css_parser/css_parser-1.16.0.ebuild
+++ b/dev-ruby/css_parser/css_parser-1.16.0.ebuild
@@ -1,8 +1,8 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 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_DOC_DIR="doc"
 RUBY_FAKEGEM_EXTRADOC="CHANGELOG.md README.md "