diff --git a/sysutils/uefi-edk2-bhyve-csm/Makefile b/sysutils/uefi-edk2-bhyve-csm/Makefile
--- a/sysutils/uefi-edk2-bhyve-csm/Makefile
+++ b/sysutils/uefi-edk2-bhyve-csm/Makefile
@@ -11,6 +11,9 @@
 
 LICENSE=	BSD2CLAUSE
 
+DEPRECATED=     Requires old edk2 version and gcc 4.8.
+EXPIRATION_DATE=2024-04-01
+
 ONLY_FOR_ARCHS=	amd64
 
 BUILD_DEPENDS=	bash:shells/bash \