diff --git a/graphics/libheif/Makefile b/graphics/libheif/Makefile
index 6700a864217f..82e3f4f30e29 100644
--- a/graphics/libheif/Makefile
+++ b/graphics/libheif/Makefile
@@ -1,71 +1,70 @@
 PORTNAME=	libheif
-DISTVERSION=	1.17.4
-PORTREVISION=	1
+DISTVERSION=	1.17.6
 CATEGORIES=	graphics
 MASTER_SITES=	https://github.com/strukturag/${PORTNAME}/releases/download/v${DISTVERSION}/
 
 MAINTAINER=	makc@FreeBSD.org
 COMMENT=	ISO/IEC 23008-12:2017 HEIF file format de- and encoder
 WWW=		https://github.com/strukturag/libheif
 
 LICENSE=	LGPL3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libsharpyuv.so:graphics/webp
 
 USES=		cmake:testing compiler:c++11-lang cpe gettext-runtime gnome \
 		localbase:ldflags pathfix pkgconfig
 CPE_VENDOR=	struktur
 USE_GNOME=	gdkpixbuf2 glib20
 USE_LDCONFIG=	yes
 PLIST_SUB=	LIB_VER=${DISTVERSION}
 
 CMAKE_OFF=	BUILD_TESTING \
 		WITH_KVAZAAR
 CMAKE_ON=	CMAKE_DISABLE_FIND_PACKAGE_Doxygen
 
 OPTIONS_DEFINE=	AOM DAV1D EXAMPLES FFMPEG JPEG LIBDE265 \
 		OPENJPEG SVTAV1 RAV1E X265
 OPTIONS_DEFAULT=AOM DAV1D FFMPEG JPEG OPENJPEG SVTAV1 X265
 OPTIONS_SUB=	yes
 
 AOM_DESC=		AV1 encoding/decoding via libaom
 FFMPEG_DESC=		Use FFmpeg (support for HEVC decoding)
 DAV1D_DESC=		Build dav1e decoder
 LIBDE265_DESC=		Use libde265 (support for HEVC decoding)
 SVTAV1_DESC=		Build svt-av1 encoder
 RAV1E_DESC=		Build rav1e encoder
 X265_DESC=		Use x265 (support for HEVC encoding)
 
 AOM_LIB_DEPENDS=	libaom.so:multimedia/aom
 AOM_CMAKE_BOOL=		WITH_AOM_ENCODER WITH_AOM_DECODER
 
 DAV1D_LIB_DEPENDS=	libdav1d.so:multimedia/dav1d
 DAV1D_CMAKE_BOOL=	WITH_DAV1D
 
 EXAMPLES_LIB_DEPENDS=	libpng16.so:graphics/png
 EXAMPLES_CMAKE_BOOL=	WITH_EXAMPLES
 EXAMPLE_IMPLIES=	JPEG
 
 FFMPEG_LIB_DEPENDS=	libavcodec.so:multimedia/ffmpeg
 FFMPEG_CMAKE_BOOL=	WITH_FFMPEG_DECODER
 
 JPEG_USES=		jpeg
 JPEG_CMAKE_BOOL=	WITH_JPEG_ENCODER WITH_JPEG_DECODER
 
 LIBDE265_LIB_DEPENDS=	libde265.so:multimedia/libde265
 LIBDE265_CMAKE_BOOL=	WITH_LIBDE265
 
 OPENJPEG_LIB_DEPENDS=	libopenjp2.so:graphics/openjpeg
 OPENJPEG_CMAKE_BOOL=	WITH_OpenJPEG_ENCODER WITH_OpenJPEG_DECODER
 
 SVTAV1_LIB_DEPENDS=	libSvtAv1Enc.so:multimedia/svt-av1
 SVTAV1_CMAKE_BOOL=	WITH_SvtEnc
 
 RAV1E_LIB_DEPENDS=	librav1e.so:multimedia/librav1e
 RAV1E_CMAKE_BOOL=	WITH_RAV1E
 
 X265_LIB_DEPENDS=	libx265.so:multimedia/x265
 X265_CMAKE_BOOL=	WITH_X265
 
 .include <bsd.port.mk>
diff --git a/graphics/libheif/distinfo b/graphics/libheif/distinfo
index e1d326579d46..123ae9bcf3d7 100644
--- a/graphics/libheif/distinfo
+++ b/graphics/libheif/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1700512309
-SHA256 (libheif-1.17.4.tar.gz) = 3619c092992eb5ccaf7795cbdc8ac70f96ab0f20fc5681fcef6ff5fec027a838
-SIZE (libheif-1.17.4.tar.gz) = 1432474
+TIMESTAMP = 1703123477
+SHA256 (libheif-1.17.6.tar.gz) = 8390baf4913eda0a183e132cec62b875fb2ef507ced5ddddc98dfd2f17780aee
+SIZE (libheif-1.17.6.tar.gz) = 1433302
diff --git a/graphics/libheif/files/patch-gnome_CMakeLists.txt b/graphics/libheif/files/patch-gnome_CMakeLists.txt
deleted file mode 100644
index ec8b5a1dfb03..000000000000
--- a/graphics/libheif/files/patch-gnome_CMakeLists.txt
+++ /dev/null
@@ -1,7 +0,0 @@
---- gnome/CMakeLists.txt.orig	2023-11-20 21:17:44 UTC
-+++ gnome/CMakeLists.txt
-@@ -1,3 +1,4 @@
-+find_package(PNG)
- if(WITH_EXAMPLES AND TARGET PNG::PNG)
-   install(FILES heif.thumbnailer DESTINATION ${CMAKE_INSTALL_DATADIR}/thumbnailers)
- endif()