diff --git a/www-servers/puma/puma-5.6.4.ebuild b/www-servers/puma/puma-5.6.4.ebuild
index 3b45d587916a9..fd4e4bdf0854e 100644
--- a/www-servers/puma/puma-5.6.4.ebuild
+++ b/www-servers/puma/puma-5.6.4.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby26 ruby27 ruby30"
+USE_RUBY="ruby26 ruby27 ruby30 ruby31"
 
 RUBY_FAKEGEM_GEMSPEC="puma.gemspec"