diff --git a/audio/osalp/Makefile b/audio/osalp/Makefile
--- a/audio/osalp/Makefile
+++ b/audio/osalp/Makefile
@@ -9,6 +9,9 @@
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Open Source Audio Library Project
 
+DEPRECATED=	Abandoned upstream, listed as beta and no new release since 2008
+EXPIRATION_DATE=2021-12-31
+
 RUN_DEPENDS=	mpg123:audio/mpg123
 LIB_DEPENDS=	libmp3lame.so:audio/lame \
 		libvorbis.so:audio/libvorbis