Index: head/graphics/png/Makefile
===================================================================
--- head/graphics/png/Makefile	(revision 447449)
+++ head/graphics/png/Makefile	(revision 447450)
@@ -1,41 +1,39 @@
 # Created by: ache
 # $FreeBSD$
 
 PORTNAME=	png
-PORTVERSION=	1.6.29
+PORTVERSION=	1.6.31
 CATEGORIES=	graphics
 MASTER_SITES=	SF/lib${PORTNAME}/lib${PORTNAME}16/${PORTVERSION} \
 		ftp://ftp.simplesystems.org/pub/lib${PORTNAME}/${PORTNAME}/src/lib${PORTNAME}16/
 PATCH_SITES=	SF/apng/lib${PORTNAME}/lib${PORTNAME}16/
 DISTNAME=	lib${PORTNAME}-${PORTVERSION}
 
 MAINTAINER=	portmgr@FreeBSD.org
 COMMENT=	Library for manipulating PNG images
 
 LICENSE=	Libpng
 LICENSE_GROUPS=	FSF GPL OSI
 LICENSE_NAME=	libpng License
 LICENSE_FILE=	${WRKSRC}/LICENSE
 LICENSE_PERMS=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
-
-PORTSCOUT=	skipv:1.6.30
 
 USES=		cpe libtool tar:xz
 CPE_PRODUCT=	libpng
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-pkgconfigdir=${PREFIX}/libdata/pkgconfig
 INSTALL_TARGET=	install-strip
 TEST_TARGET=	check-TESTS
 USE_LDCONFIG=	yes
 
 OPTIONS_DEFINE=	APNG
 OPTIONS_DEFAULT=APNG
 APNG_DESC=Enable Animated PNG support
 
 .include <bsd.port.options.mk>
 
 .if ${PORT_OPTIONS:MAPNG} || make(makesum)
 PATCHFILES=	${DISTNAME}-apng.patch.gz
 .endif
 
 .include <bsd.port.mk>
Index: head/graphics/png/distinfo
===================================================================
--- head/graphics/png/distinfo	(revision 447449)
+++ head/graphics/png/distinfo	(revision 447450)
@@ -1,5 +1,5 @@
-TIMESTAMP = 1489819428
-SHA256 (libpng-1.6.29.tar.xz) = 4245b684e8fe829ebb76186327bb37ce5a639938b219882b53d64bd3cfc5f239
-SIZE (libpng-1.6.29.tar.xz) = 987652
-SHA256 (libpng-1.6.29-apng.patch.gz) = 6120948990a86f8118d67471ff04e35ca1f93722061ef6b90842c64608584b91
-SIZE (libpng-1.6.29-apng.patch.gz) = 10313
+TIMESTAMP = 1501238385
+SHA256 (libpng-1.6.31.tar.xz) = 232a602de04916b2b5ce6f901829caf419519e6a16cc9cd7c1c91187d3ee8b41
+SIZE (libpng-1.6.31.tar.xz) = 991824
+SHA256 (libpng-1.6.31-apng.patch.gz) = a10645f0af2aa23e0f437b2b7ce784c1398ba9e05555a1b61fee510bab22c227
+SIZE (libpng-1.6.31-apng.patch.gz) = 10308
Index: head/graphics/png/pkg-plist
===================================================================
--- head/graphics/png/pkg-plist	(revision 447449)
+++ head/graphics/png/pkg-plist	(revision 447450)
@@ -1,21 +1,21 @@
 bin/libpng-config
 bin/libpng16-config
 bin/png-fix-itxt
 bin/pngfix
 include/libpng16/png.h
 include/libpng16/pngconf.h
 include/libpng16/pnglibconf.h
 include/png.h
 include/pngconf.h
 include/pnglibconf.h
 lib/libpng.a
 lib/libpng.so
 lib/libpng16.a
 lib/libpng16.so
 lib/libpng16.so.16
-lib/libpng16.so.16.29.0
+lib/libpng16.so.16.31.0
 libdata/pkgconfig/libpng.pc
 libdata/pkgconfig/libpng16.pc
 man/man3/libpng.3.gz
 man/man3/libpngpf.3.gz
 man/man5/png.5.gz