diff --git a/audio/faust/Makefile b/audio/faust/Makefile
index 8cecb0237681c..422e97e1ad0f7 100644
--- a/audio/faust/Makefile
+++ b/audio/faust/Makefile
@@ -1,5 +1,5 @@
 PORTNAME=	faust
-DISTVERSION=	2.50.6
+DISTVERSION=	2.54.9
 CATEGORIES=	audio devel
 
 MAINTAINER=	yuri@FreeBSD.org
@@ -12,7 +12,7 @@ LICENSE_FILE=	${WRKSRC}/COPYING.txt
 LIB_DEPENDS=	libLLVM-${LLVM_VERSION}.so:devel/llvm${LLVM_VERSION}
 RUN_DEPENDS=	bash:shells/bash
 
-USES=		compiler:c++14-lang cmake ncurses python pkgconfig shebangfix
+USES=		compiler:c++14-lang cmake llvm:min=15,lib ncurses python pkgconfig shebangfix # llvm: versions <11 lacked dump() function(s) that cause unresolved symbols in libfaust.so
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
@@ -22,8 +22,6 @@ GH_TUPLE=	\
 
 SHEBANG_FILES=	tools/faust2appls/* tools/benchmark/faustbench tools/sound2faust/sound2reader
 
-LLVM_VERSION=	13 # versions <11 lacked dump() function(s) that cause unresolved symbols in libfaust.so
-
 CMAKE_SOURCE_PATH=	${WRKSRC}/build
 CMAKE_ON=	INCLUDE_DYNAMIC # only installs headers and not libs without INCLUDE_DYNAMIC or INCLUDE_STATIC: https://github.com/grame-cncm/faust/issues/553
 CMAKE_ARGS=	-C ${FILESDIR}/backends.cmake -DLLVM_CONFIG=${LOCALBASE}/bin/llvm-config${LLVM_VERSION} \
diff --git a/audio/faust/distinfo b/audio/faust/distinfo
index 7c8b6e73379d1..00969c8362ed0 100644
--- a/audio/faust/distinfo
+++ b/audio/faust/distinfo
@@ -1,5 +1,5 @@
-TIMESTAMP = 1664937692
-SHA256 (grame-cncm-faust-2.50.6_GH0.tar.gz) = fc5b50d4bd1cbb142153406f4a2a8d534a816f4c37f207adae8c3dc397529ab9
-SIZE (grame-cncm-faust-2.50.6_GH0.tar.gz) = 69639553
+TIMESTAMP = 1672024334
+SHA256 (grame-cncm-faust-2.54.9_GH0.tar.gz) = 14648f020d77874e6f7411d7ff605820015645bbd4b891b24bee3d3a898e48d2
+SIZE (grame-cncm-faust-2.54.9_GH0.tar.gz) = 70137859
 SHA256 (grame-cncm-faustlibraries-f9efea9_GH0.tar.gz) = 19c98d857edee00ae7682c222377c9e4fcc51d54029d7fe59bb66b2e2cdaf77c
 SIZE (grame-cncm-faustlibraries-f9efea9_GH0.tar.gz) = 7810456
diff --git a/audio/faust/pkg-plist b/audio/faust/pkg-plist
index d088a607babb5..d903ad6a0d644 100644
--- a/audio/faust/pkg-plist
+++ b/audio/faust/pkg-plist
@@ -15,6 +15,7 @@ bin/faust2bench
 bin/faust2cagtk
 bin/faust2caqt
 bin/faust2caqtios
+bin/faust2cmajor
 bin/faust2cpalrust
 bin/faust2csound
 bin/faust2csvplot
@@ -74,7 +75,6 @@ bin/faust2sig
 bin/faust2sigviewer
 bin/faust2smartkeyb
 bin/faust2sndfile
-bin/faust2soul
 bin/faust2sublimecompletions
 bin/faust2supercollider
 bin/faust2svg
@@ -123,6 +123,8 @@ include/faust/audio/portaudio-dsp.h
 include/faust/audio/rtaudio-dsp.h
 include/faust/audio/samAudio.h
 include/faust/audio/teensy-dsp.h
+include/faust/dsp/cmajor-cpp-dsp.h
+include/faust/dsp/cmajorpatch-dsp.h
 include/faust/dsp/cpp-dsp-adapter.h
 include/faust/dsp/dsp-adapter.h
 include/faust/dsp/dsp-adapter.h.orig
@@ -161,8 +163,6 @@ include/faust/dsp/poly-llvm-dsp.h
 include/faust/dsp/poly-wasm-dsp.h
 include/faust/dsp/proxy-dsp.h
 include/faust/dsp/proxy-osc-dsp.h
-include/faust/dsp/soul-cpp-dsp.h
-include/faust/dsp/soulpatch-dsp.h
 include/faust/dsp/sound-player.h
 include/faust/dsp/timed-dsp.h
 include/faust/dsp/timed-dsp.h.orig
@@ -226,7 +226,7 @@ include/faust/gui/ValueConverter.h
 include/faust/gui/WaveReader.h
 include/faust/gui/console.h
 include/faust/gui/httpdUI.h
-%%HTTPD_LIB%%include/faust/gui/jsonfaustui.h
+include/faust/gui/jsonfaustui.h
 include/faust/gui/meta.h
 include/faust/gui/mspUI.h
 include/faust/gui/qrcodegen.h
@@ -262,7 +262,7 @@ lib/ios-libsndfile.a
 lib/libOSCFaust.a
 lib/libfaust.so
 lib/libfaust.so.2
-lib/libfaust.so.2.50.6
+lib/libfaust.so.2.54.9
 %%HIGHLIGHT%%share/apps/katepart/syntax/faust.xml
 %%DATADIR%%/AU/AUPublic/AUBase/AUBase.cpp
 %%DATADIR%%/AU/AUPublic/AUBase/AUBase.h
@@ -383,6 +383,20 @@ lib/libfaust.so.2.50.6
 %%DATADIR%%/c-jack-gtk.c
 %%DATADIR%%/ca-gtk.cpp
 %%DATADIR%%/ca-qt.cpp
+%%DATADIR%%/cmajor/Makefile
+%%DATADIR%%/cmajor/README.md
+%%DATADIR%%/cmajor/Using-Faust-in-Cmajor.md
+%%DATADIR%%/cmajor/cmajor-faust-editor.cpp
+%%DATADIR%%/cmajor/cmajor-faust-player.cpp
+%%DATADIR%%/cmajor/cmajor-faust-tester.cpp
+%%DATADIR%%/cmajor/cmajor-tools.h
+%%DATADIR%%/cmajor/hybrid-test1.cmajor
+%%DATADIR%%/cmajor/hybrid-test1.cmajorpatch
+%%DATADIR%%/cmajor/hybrid-test2.cmajor
+%%DATADIR%%/cmajor/hybrid-test2.cmajorpatch
+%%DATADIR%%/cmajor/minimal.cmajor
+%%DATADIR%%/cmajor/poly-dsp-effect.cmajor
+%%DATADIR%%/cmajor/poly-dsp.cmajor
 %%DATADIR%%/compressors.lib
 %%DATADIR%%/cpal.rs
 %%DATADIR%%/csound.cpp
@@ -825,16 +839,6 @@ lib/libfaust.so.2.50.6
 %%DATADIR%%/smartKeyboard/iOS/Faust/img/keyUpDark.png
 %%DATADIR%%/smartKeyboard/iOS/Faust/main.m
 %%DATADIR%%/sndfile.cpp
-%%DATADIR%%/soul/Makefile
-%%DATADIR%%/soul/README.md
-%%DATADIR%%/soul/hybrid-test1.soul
-%%DATADIR%%/soul/hybrid-test2.soul
-%%DATADIR%%/soul/minimal.soul
-%%DATADIR%%/soul/poly-dsp-effect.soul
-%%DATADIR%%/soul/poly-dsp.soul
-%%DATADIR%%/soul/soul-faust-editor.cpp
-%%DATADIR%%/soul/soul-faust-player.cpp
-%%DATADIR%%/soul/soul-faust-tester.cpp
 %%DATADIR%%/soundfiles.lib
 %%DATADIR%%/spats.lib
 %%DATADIR%%/stdfaust.lib