diff --git a/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild b/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild
index 7b1451f64f58e..e517127bb54aa 100644
--- a/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild
+++ b/dev-ruby/diff-lcs/diff-lcs-1.3.ebuild
@@ -2,9 +2,9 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
-USE_RUBY="ruby21 ruby22 ruby23 ruby24"
+USE_RUBY="ruby22 ruby23 ruby24"
 
-RUBY_FAKEGEM_RECIPE_TEST="rspec"
+RUBY_FAKEGEM_RECIPE_TEST="rspec3"
 
 RUBY_FAKEGEM_RECIPE_DOC="rdoc"
 RUBY_FAKEGEM_EXTRADOC="README.rdoc History.md"