diff --git a/graphics/gource/Makefile b/graphics/gource/Makefile
index 14c7dcc04db2..850c65c16833 100644
--- a/graphics/gource/Makefile
+++ b/graphics/gource/Makefile
@@ -1,29 +1,30 @@
 PORTNAME=	gource
 PORTVERSION=	0.51
 PORTREVISION=	12
 CATEGORIES=	graphics
 MASTER_SITES=	https://github.com/acaudwell/Gource/releases/download/${PORTNAME}-${PORTVERSION}/
 
 MAINTAINER=	demon@FreeBSD.org
 COMMENT=	OpenGL-based 3D visualisation tool for source control repositories
 WWW=		https://gource.io/
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BROKEN=		fails to build with boost-1.85+
+EXPIRATION_DATE=2025-10-13
 
 BUILD_DEPENDS=	${LOCALBASE}/include/glm/glm.hpp:math/glm
 LIB_DEPENDS=	libfreetype.so:print/freetype2 \
 		libpcre.so:devel/pcre \
 		libboost_filesystem.so:devel/boost-libs \
 		libpng.so:graphics/png
 RUN_DEPENDS=	${LOCALBASE}/include/glm/glm.hpp:math/glm
 
 USES=		compiler:c++0x cpe gl gmake pkgconfig sdl
 GNU_CONFIGURE=	yes
 GNU_CONFIGURE_MANPREFIX=	${PREFIX}/share
 USE_GL=		glew gl glu
 USE_SDL=	image2 sdl2
 
 .include <bsd.port.mk>