diff --git a/dev-ruby/imagesize/imagesize-0.1.1_p20100902-r2.ebuild b/dev-ruby/imagesize/imagesize-0.1.1_p20100902-r2.ebuild
index 2c872bffcccb..4d42f300c52d 100644
--- a/dev-ruby/imagesize/imagesize-0.1.1_p20100902-r2.ebuild
+++ b/dev-ruby/imagesize/imagesize-0.1.1_p20100902-r2.ebuild
@@ -1,8 +1,9 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-USE_RUBY="ruby31 ruby32 ruby33 ruby34"
+
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 RUBY_FAKEGEM_EXTRADOC="README.txt"
 RUBY_FAKEGEM_GEMSPEC="imagesize.gemspec"