diff --git a/sdk_container/src/third_party/portage-stable/eclass/ruby-utils.eclass b/sdk_container/src/third_party/portage-stable/eclass/ruby-utils.eclass
index 4bd3e6ba12..f55fcb29af 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/ruby-utils.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/ruby-utils.eclass
@@ -1,4 +1,4 @@
-# Copyright 1999-2024 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: ruby-utils.eclass
@@ -33,7 +33,7 @@ esac
 # provide for a better first installation experience.
 
 # All stable RUBY_TARGETS
-RUBY_TARGETS_PREFERENCE="ruby32 ruby31 "
+RUBY_TARGETS_PREFERENCE="ruby32 "
 
 # All other active ruby targets
 RUBY_TARGETS_PREFERENCE+="ruby33 ruby34"