diff --git a/dev-ruby/rspec-mocks/rspec-mocks-3.12.6.ebuild b/dev-ruby/rspec-mocks/rspec-mocks-3.12.6.ebuild
index e0d75bd508296..346d017433e8a 100644
--- a/dev-ruby/rspec-mocks/rspec-mocks-3.12.6.ebuild
+++ b/dev-ruby/rspec-mocks/rspec-mocks-3.12.6.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-USE_RUBY="ruby30 ruby31 ruby32"
+USE_RUBY="ruby30 ruby31 ruby32 ruby33"
 
 RUBY_FAKEGEM_RECIPE_TEST="rspec3"