diff --git a/dev-ruby/phlex/phlex-2.2.2.ebuild b/dev-ruby/phlex/phlex-2.2.2.ebuild
index 7f652dd9f9e68..5cf7d7bd67e5d 100644
--- a/dev-ruby/phlex/phlex-2.2.2.ebuild
+++ b/dev-ruby/phlex/phlex-2.2.2.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
-USE_RUBY="ruby32 ruby33 ruby34"
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 RUBY_FAKEGEM_BINWRAP=""
 RUBY_FAKEGEM_EXTRADOC="README.md"
diff --git a/dev-ruby/phlex/phlex-2.3.2.ebuild b/dev-ruby/phlex/phlex-2.3.2.ebuild
index b82b8db03953a..858cbf94db9c5 100644
--- a/dev-ruby/phlex/phlex-2.3.2.ebuild
+++ b/dev-ruby/phlex/phlex-2.3.2.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=8
 
-USE_RUBY="ruby32 ruby33 ruby34"
+USE_RUBY="ruby32 ruby33 ruby34 ruby40"
 
 RUBY_FAKEGEM_BINWRAP=""
 RUBY_FAKEGEM_EXTRADOC="README.md"