diff --git a/sdk_container/src/third_party/portage-stable/eclass/systemd.eclass b/sdk_container/src/third_party/portage-stable/eclass/systemd.eclass
index 03d6a82fd3..a5f0decde1 100644
--- a/sdk_container/src/third_party/portage-stable/eclass/systemd.eclass
+++ b/sdk_container/src/third_party/portage-stable/eclass/systemd.eclass
@@ -1,4 +1,4 @@
-# Copyright 2011-2023 Gentoo Authors
+# Copyright 2011-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 # @ECLASS: systemd.eclass
@@ -25,7 +25,11 @@
 # @CODE
 
 case ${EAPI} in
-	5|6|7|8) ;;
+	6)
+		ewarn "${CATEGORY}/${PF}: ebuild uses ${ECLASS} with deprecated EAPI ${EAPI}!"
+		ewarn "${CATEGORY}/${PF}: Support will be removed on 2024-10-08. Please port to newer EAPI."
+		;;
+	7|8) ;;
 	*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
 esac