diff --git a/dev-ruby/gnuplot/gnuplot-2.6.2-r2.ebuild b/dev-ruby/gnuplot/gnuplot-2.6.2-r2.ebuild
index 7d1de33a1f42e..dc8731db96210 100644
--- a/dev-ruby/gnuplot/gnuplot-2.6.2-r2.ebuild
+++ b/dev-ruby/gnuplot/gnuplot-2.6.2-r2.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2018 Gentoo Foundation
+# Copyright 1999-2019 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
 
-USE_RUBY="ruby22 ruby23 ruby24 ruby25"
+USE_RUBY="ruby23 ruby24 ruby25 ruby26"
 
 RUBY_FAKEGEM_TASK_DOC=""
 RUBY_FAKEGEM_EXTRADOC="AUTHORS.txt ChangeLog README.textile"