diff --git a/dev-ruby/heredoc_unindent/heredoc_unindent-1.2.0-r2.ebuild b/dev-ruby/heredoc_unindent/heredoc_unindent-1.2.0-r2.ebuild
index c200a82e3231b..806184cb56035 100644
--- a/dev-ruby/heredoc_unindent/heredoc_unindent-1.2.0-r2.ebuild
+++ b/dev-ruby/heredoc_unindent/heredoc_unindent-1.2.0-r2.ebuild
@@ -1,9 +1,9 @@
-# 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 ruby33"
+USE_RUBY="ruby31 ruby32 ruby33 ruby34"
 
 inherit ruby-fakegem