diff --git a/dev-ruby/acme-client/acme-client-2.0.21.ebuild b/dev-ruby/acme-client/acme-client-2.0.21.ebuild
index c85929891f328..de49ce2b60663 100644
--- a/dev-ruby/acme-client/acme-client-2.0.21.ebuild
+++ b/dev-ruby/acme-client/acme-client-2.0.21.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby31 ruby32 ruby33"
+USE_RUBY="ruby31 ruby32 ruby33 ruby34"
 
 RUBY_FAKEGEM_BINWRAP=""