diff --git a/games/pentobi/Makefile b/games/pentobi/Makefile
index 1e316368b0cd..32cc817d316d 100644
--- a/games/pentobi/Makefile
+++ b/games/pentobi/Makefile
@@ -1,37 +1,39 @@
 PORTNAME=	pentobi
-PORTVERSION=	22.1
+PORTVERSION=	23.1
 CATEGORIES=	games
 MASTER_SITES=	SF/${PORTNAME}/${PORTVERSION}
 
 MAINTAINER=	amdmi3@FreeBSD.org
 COMMENT=	Computer opponent for the board game Blokus
 WWW=		https://pentobi.sourceforge.io/ \
 		https://github.com/enz/pentobi
 
 LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/LICENSE.md
 
+BROKEN_FreeBSD_12=	does not build: no member named 'test' in 'std::__1::atomic_flag'
+
 BUILD_DEPENDS=	itstool:textproc/itstool \
 		xsltproc:textproc/libxslt \
 		${LOCALBASE}/share/xsl/docbook/manpages/docbook.xsl:textproc/docbook-xsl
 
-USES=		compiler:c++14-lang cmake desktop-file-utils gettext-tools gnome qt:6 \
+USES=		compiler:c++20-lang cmake desktop-file-utils gettext-tools gnome qt:6 \
 		shared-mime-info tar:xz
 USE_GNOME=	librsvg2:build
 USE_QT=		base declarative tools:build
 
 PORTDATA=	*
 PORTDOCS=	*
 
 OPTIONS_DEFINE=	DOCS TEST
 OPTIONS_DEFAULT=TEST
 
 TEST_CMAKE_BOOL=	BUILD_TESTING
 TEST_TEST_TARGET=	test
 
 post-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	cd ${WRKSRC} && ${INSTALL_DATA} AUTHORS.md CONTRIBUTING.md NEWS.md \
 		README.md ${STAGEDIR}${DOCSDIR}/
 
 .include <bsd.port.mk>
diff --git a/games/pentobi/distinfo b/games/pentobi/distinfo
index 90e7c95911db..169a410f4b7e 100644
--- a/games/pentobi/distinfo
+++ b/games/pentobi/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1675354477
-SHA256 (pentobi-22.1.tar.xz) = b4d9c72714b7e00d13d88cdf591b1c54c87d00e08344c4239a64f8edc7bef65c
-SIZE (pentobi-22.1.tar.xz) = 471336
+TIMESTAMP = 1679684397
+SHA256 (pentobi-23.1.tar.xz) = 246b430f6dd1579dea378ba44ab742f8df9a77bad06219d250726967f65f5772
+SIZE (pentobi-23.1.tar.xz) = 467596
diff --git a/games/pentobi/pkg-plist b/games/pentobi/pkg-plist
index 1c8b5794a533..e2085d19e986 100644
--- a/games/pentobi/pkg-plist
+++ b/games/pentobi/pkg-plist
@@ -1,32 +1,32 @@
 bin/pentobi
 bin/pentobi-thumbnailer
 share/applications/io.sourceforge.pentobi.desktop
 share/icons/hicolor/128x128/apps/pentobi.png
-share/icons/hicolor/128x128/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/128x128/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/16x16/apps/pentobi.png
-share/icons/hicolor/16x16/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/16x16/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/22x22/apps/pentobi.png
-share/icons/hicolor/22x22/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/22x22/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/24x24/apps/pentobi.png
-share/icons/hicolor/24x24/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/24x24/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/256x256/apps/pentobi.png
-share/icons/hicolor/256x256/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/256x256/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/32x32/apps/pentobi.png
-share/icons/hicolor/32x32/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/32x32/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/48x48/apps/pentobi.png
-share/icons/hicolor/48x48/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/48x48/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/64x64/apps/pentobi.png
-share/icons/hicolor/64x64/mimetypes/application-x-blokus-sgf.png
+share/icons/hicolor/64x64/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.png
 share/icons/hicolor/scalable/apps/pentobi.svg
-share/icons/hicolor/scalable/mimetypes/application-x-blokus-sgf.svg
+share/icons/hicolor/scalable/mimetypes/io.sourceforge.pentobi.application-x-blokus-sgf.svg
 share/man/de/man6/pentobi-thumbnailer.6.gz
 share/man/de/man6/pentobi.6.gz
 share/man/es/man6/pentobi-thumbnailer.6.gz
 share/man/es/man6/pentobi.6.gz
 share/man/man6/pentobi-thumbnailer.6.gz
 share/man/man6/pentobi.6.gz
 share/man/ru/man6/pentobi-thumbnailer.6.gz
 share/man/ru/man6/pentobi.6.gz
 share/metainfo/io.sourceforge.pentobi.appdata.xml
-share/mime/packages/pentobi-mime.xml
+share/mime/packages/io.sourceforge.pentobi.xml
 share/thumbnailers/pentobi.thumbnailer