diff --git a/dev-ruby/crass/crass-1.0.6-r1.ebuild b/dev-ruby/crass/crass-1.0.6-r1.ebuild
index 75d1043a002f3..86cf1e2373c77 100644
--- a/dev-ruby/crass/crass-1.0.6-r1.ebuild
+++ b/dev-ruby/crass/crass-1.0.6-r1.ebuild
@@ -1,9 +1,9 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-USE_RUBY="ruby31 ruby32 ruby33"
+USE_RUBY="ruby31 ruby32 ruby33 ruby34"
 
 RUBY_FAKEGEM_EXTRADOC="HISTORY.md README.md"
 
@@ -18,7 +18,6 @@ SRC_URI="https://github.com/rgrove/crass/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="amd64 ~arm ~arm64 ~hppa ~ppc ~ppc64 ~riscv ~sparc ~x86 ~ppc-macos ~x64-macos ~x64-solaris"
-IUSE=""
 
 ruby_add_bdepend ">=dev-ruby/minitest-5.0.8:5"