diff --git a/audio/polyphone/Makefile b/audio/polyphone/Makefile
index a22c4f9a019b..81b371336f99 100644
--- a/audio/polyphone/Makefile
+++ b/audio/polyphone/Makefile
@@ -1,42 +1,39 @@
 PORTNAME=	polyphone
-DISTVERSION=	2.3.0
-PORTREVISION=	6
+DISTVERSION=	2.4.0
 CATEGORIES=	audio
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Graphical user interface for editing soundfont (sf2 and sfz) files
 WWW=		https://www.polyphone-soundfonts.com/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/../LICENSE.txt
 
 LIB_DEPENDS=	libFLAC.so:audio/flac \
 		libjack.so:audio/jack \
 		libogg.so:audio/libogg \
 		libportaudio.so:audio/portaudio \
-		libQCustomPlot-qt5.so:graphics/qcustomplot@qt5 \
 		librtmidi.so:audio/rtmidi \
 		libstk.so:audio/stk \
 		libvorbisfile.so:audio/libvorbis
 
 USES=		compiler:c++11-lang desktop-file-utils dos2unix gl gnome pkgconfig qmake:outsource qt:5 shared-mime-info ssl xorg
 DOS2UNIX_FILES=	polyphone.pro \
-		editor/graphics/graphiquefourier.cpp \
 		editor/tree/treeitemdelegate.cpp
 USE_GL=		gl
-USE_QT=		core concurrent gui network printsupport svg widgets buildtools:build linguisttools:build qmake:build
+USE_QT=		core concurrent gui network printsupport svg testlib widgets buildtools:build linguisttools:build qmake:build
 USE_GNOME=	glib20
 USE_CXXSTD=	c++11
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	davy7125
 
 CXXFLAGS+=	-D__UNIX_JACK__
 LIBS+=		-lssl -lcrypto
 
 WRKSRC_SUBDIR=	sources
 
 post-extract: # unbundle
 	@${RM} -r ${WRKSRC}/lib/_option_qcustomplot ${WRKSRC}/lib/_option_rtmidi ${WRKSRC}/lib/_option_stk
 
 .include <bsd.port.mk>
diff --git a/audio/polyphone/distinfo b/audio/polyphone/distinfo
index e3f1cb416c05..90d049c987b6 100644
--- a/audio/polyphone/distinfo
+++ b/audio/polyphone/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1647278407
-SHA256 (davy7125-polyphone-2.3.0_GH0.tar.gz) = ecf401f2a083bb5396032953bb3d051e39aa4483063da9546852219ad532605a
-SIZE (davy7125-polyphone-2.3.0_GH0.tar.gz) = 1946254
+TIMESTAMP = 1726712531
+SHA256 (davy7125-polyphone-2.4.0_GH0.tar.gz) = 5742f50980d0181a2889f46ab38e932aacd35965b4b0ab31d01f29721ddd39ef
+SIZE (davy7125-polyphone-2.4.0_GH0.tar.gz) = 1942986
diff --git a/audio/polyphone/files/patch-editor_graphics_graphiquefourier.cpp b/audio/polyphone/files/patch-editor_graphics_graphiquefourier.cpp
deleted file mode 100644
index 7c5c27a0d526..000000000000
--- a/audio/polyphone/files/patch-editor_graphics_graphiquefourier.cpp
+++ /dev/null
@@ -1,10 +0,0 @@
---- editor/graphics/graphiquefourier.cpp.orig	2020-05-21 08:02:47 UTC
-+++ editor/graphics/graphiquefourier.cpp
-@@ -30,6 +30,7 @@
- #include <QMenu>
- #include <QFileDialog>
- #include <QPainter>
-+#include <QPainterPath>
- 
- GraphiqueFourier::GraphiqueFourier(QWidget * parent) : QCustomPlot(parent),
-     _fixedTickerX(new QCPAxisTickerFixed()),
diff --git a/audio/polyphone/files/patch-polyphone.pro b/audio/polyphone/files/patch-polyphone.pro
index 36425cd57abe..882d801513b8 100644
--- a/audio/polyphone/files/patch-polyphone.pro
+++ b/audio/polyphone/files/patch-polyphone.pro
@@ -1,26 +1,20 @@
---- polyphone.pro.orig	2020-11-29 08:46:04 UTC
+--- polyphone.pro.orig	2024-09-19 02:24:17 UTC
 +++ polyphone.pro
-@@ -67,11 +67,11 @@ unix:!macx {
-     QMAKE_CXXFLAGS += -std=c++11
-     DEFINES += __LINUX_ALSASEQ__ __UNIX_JACK__
+@@ -82,13 +82,13 @@ unix:!macx {
+         lib/_option_rtaudio/rtaudio/include/iasiothiscallresolver.cpp
+ }
+ unix:!macx {
+-    DEFINES += __LINUX_ALSASEQ__ __UNIX_JACK__ __LINUX_ALSA__ #__LINUX_PULSE__
++    DEFINES += __UNIX_JACK__ #__LINUX_PULSE__
      CONFIG += link_pkgconfig
--    PKGCONFIG += alsa jack portaudio-2.0 zlib ogg flac vorbis vorbisfile vorbisenc glib-2.0
-+    PKGCONFIG += jack portaudio-2.0 zlib ogg flac vorbis vorbisfile vorbisenc glib-2.0
+-    PKGCONFIG += alsa jack zlib ogg flac vorbis vorbisfile vorbisenc glib-2.0
++    PKGCONFIG += jack zlib ogg flac vorbis vorbisfile vorbisenc glib-2.0
      contains(DEFINES, USE_WOLFSSL) {
 -        PKGCONFIG += wolfssl
 +        #PKGCONFIG += wolfssl
      } else {
 -        PKGCONFIG += openssl
 +        #PKGCONFIG += openssl
      }
      isEmpty(PREFIX) {
          PREFIX = /usr/local
-@@ -158,7 +158,7 @@ contains(DEFINES, USE_LOCAL_QCUSTOMPLOT) {
-     HEADERS += lib/_option_qcustomplot/qcustomplot.h
-     SOURCES += lib/_option_qcustomplot/qcustomplot.cpp
- } else {
--    LIBS += -lqcustomplot
-+    LIBS += -lQCustomPlot-qt5
- }
- 
- # Location of sfArk
diff --git a/audio/polyphone/pkg-plist b/audio/polyphone/pkg-plist
index f76a1aea0110..1ce60b9c2f83 100644
--- a/audio/polyphone/pkg-plist
+++ b/audio/polyphone/pkg-plist
@@ -1,10 +1,8 @@
 bin/polyphone
-share/applications/com.polyphone_soundfonts.polyphone.desktop
+share/applications/io.polyphone.polyphone.desktop
 share/icons/hicolor/512x512/apps/polyphone.png
-share/icons/hicolor/scalable/apps/polyphone.svg
-share/icons/hicolor/scalable/mimetypes/audio-x-soundfont.svg
 share/man/fr/man1/polyphone.1.gz
 share/man/man1/polyphone.1.gz
 share/man/ru/man1/polyphone.1.gz
-share/metainfo/com.polyphone_soundfonts.polyphone.metainfo.xml
+share/metainfo/io.polyphone.polyphone.metainfo.xml
 share/mime/packages/polyphone.xml