diff --git a/sdk_container/src/third_party/portage-stable/eclass/portability.eclass b/sdk_container/src/third_party/portage-stable/eclass/portability.eclass
index 9efc9bfe41..c583ebf751 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/portability.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/portability.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: portability.eclass
@@ -6,14 +6,14 @@
 # base-system@gentoo.org
 # @AUTHOR:
 # Diego Pettenò <flameeyes@gentoo.org>
-# @SUPPORTED_EAPIS: 7 8
+# @SUPPORTED_EAPIS: 7 8 9
 # @BLURB: This eclass is created to avoid using non-portable GNUisms inside ebuilds
 
 if [[ -z ${_PORTABILITY_ECLASS} ]]; then
 _PORTABILITY_ECLASS=1
 
 case ${EAPI} in
-	7|8) ;;
+	7|8|9) ;;
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac