diff --git a/dev-ruby/thread_order/thread_order-1.1.0.ebuild b/dev-ruby/thread_order/thread_order-1.1.0.ebuild
index 1cb7bb4a4b148..994d2e174a340 100644
--- a/dev-ruby/thread_order/thread_order-1.1.0.ebuild
+++ b/dev-ruby/thread_order/thread_order-1.1.0.ebuild
@@ -4,7 +4,7 @@
 
 EAPI=5
 
-USE_RUBY="ruby20 ruby21 ruby22"
+USE_RUBY="ruby20 ruby21 ruby22 ruby23"
 
 RUBY_FAKEGEM_RECIPE_TEST="rspec3"