Index: head/graphics/pngcheck/Makefile
===================================================================
--- head/graphics/pngcheck/Makefile	(revision 562389)
+++ head/graphics/pngcheck/Makefile	(revision 562390)
@@ -1,37 +1,36 @@
 # Created by: will
 # $FreeBSD$
 
 PORTNAME=	pngcheck
-PORTVERSION=	2.3.0
-PORTREVISION=	2
+PORTVERSION=	3.0.0
 CATEGORIES=	graphics
-MASTER_SITES=	SF/png-mng/${PORTNAME}/${PORTVERSION}
+MASTER_SITES=	http://www.libpng.org/pub/png/src/ \
+		https://www.cyberbotx.com/pngcheck/
 
-MAINTAINER=	ports@FreeBSD.org
+MAINTAINER=	cyberbotx@cyberbotx.com
 COMMENT=	Checks the integrity of PNG images
 
-LICENSE=	MIT GPLv2+
+LICENSE=	GPLv2+ MIT
 LICENSE_COMB=	multi
 LICENSE_FILE_GPLv2+ =	${WRKSRC}/gpl/COPYING
 
 MAKEFILE=	Makefile.unx
 MAKE_ARGS=	CC="${CC}" LD="${CC}" CFLAGS="${CFLAGS} -DUSE_ZLIB" LIBS="-lz"
 
+PLIST_FILES=	bin/png-fix-IDAT-windowsize \
+		bin/pngcheck \
+		bin/pngsplit
 PORTDOCS=	CHANGELOG README
-
-PLIST_FILES=	bin/pngcheck \
-		bin/pngsplit \
-		bin/png-fix-IDAT-windowsize
 
 OPTIONS_DEFINE=	DOCS
 
 do-install:
 .for f in pngcheck pngsplit png-fix-IDAT-windowsize
 	${INSTALL_PROGRAM} ${WRKSRC}/${f} ${STAGEDIR}${PREFIX}/bin/
 .endfor
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${PORTDOCS:S|^|${WRKSRC}/|} ${STAGEDIR}${DOCSDIR}
 
 .include <bsd.port.mk>
Index: head/graphics/pngcheck/distinfo
===================================================================
--- head/graphics/pngcheck/distinfo	(revision 562389)
+++ head/graphics/pngcheck/distinfo	(revision 562390)
@@ -1,2 +1,3 @@
-SHA256 (pngcheck-2.3.0.tar.gz) = 77f0a039ac64df55fbd06af6f872fdbad4f639d009bbb5cd5cbe4db25690f35f
-SIZE (pngcheck-2.3.0.tar.gz) = 59864
+TIMESTAMP = 1611376101
+SHA256 (pngcheck-3.0.0.tar.gz) = c6cc37b0d3638a79fcab458ba42ad599131056bfa5001dabdc01e44f1ef99302
+SIZE (pngcheck-3.0.0.tar.gz) = 63108