diff --git a/dev-ruby/matrix/matrix-0.4.2.ebuild b/dev-ruby/matrix/matrix-0.4.2.ebuild
index 38bbfcb2f54da..6bb1a3c6ee612 100644
--- a/dev-ruby/matrix/matrix-0.4.2.ebuild
+++ b/dev-ruby/matrix/matrix-0.4.2.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-USE_RUBY="ruby26 ruby27 ruby30"
+USE_RUBY="ruby26 ruby27 ruby30 ruby31"
 
 RUBY_FAKEGEM_EXTRADOC="CHANGELOG.md README.md"