diff --git a/devel/msgpack-c/Makefile b/devel/msgpack-c/Makefile
index eac46a6b7e7d..115e600ef4b8 100644
--- a/devel/msgpack-c/Makefile
+++ b/devel/msgpack-c/Makefile
@@ -1,38 +1,34 @@
 PORTNAME=	msgpack
-PORTVERSION=	4.0.0
+PORTVERSION=	5.0.0
 DISTVERSIONPREFIX=	c-
 CATEGORIES=	devel
 PKGNAMESUFFIX=	-c
 
 MAINTAINER=	adamw@FreeBSD.org
 COMMENT=	Efficient binary serialization, like JSON but smaller and faster
 WWW=		https://msgpack.org/
 
 LICENSE=	BSL
 LICENSE_FILE=	${WRKSRC}/LICENSE_1_0.txt
 
 TEST_DEPENDS=	googletest>0:devel/googletest
 
 USES=		cmake pathfix
 USE_LDCONFIG=	yes
 USE_GITHUB=	yes
 GH_PROJECT=	msgpack-c
 
 CMAKE_OFF=	MSGPACK_BUILD_EXAMPLES
 TEST_TARGET=	test
 
 .include <bsd.port.options.mk>
 
 .if ${ARCH} == "sparc64"
 # required for __sync _* atomic operations on sparc
 USE_GCC=	yes
 .endif
 
-post-patch:
-# GoogleTest doesn't support C++98 consumers since 1.10.0
-	${REINPLACE_CMD} -e 's/c++98/c++11/' ${WRKSRC}/CMakeLists.txt
-
 pre-test:
 	cd ${WRKSRC} && ${CMAKE_BIN} . && ${MAKE_CMD}
 
 .include <bsd.port.mk>
diff --git a/devel/msgpack-c/distinfo b/devel/msgpack-c/distinfo
index 17e2628f6d25..4881c8c63acc 100644
--- a/devel/msgpack-c/distinfo
+++ b/devel/msgpack-c/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1665951311
-SHA256 (msgpack-msgpack-c-c-4.0.0_GH0.tar.gz) = 656ebe4566845e7bda9c097b625ba59ac72ddfd45df6017172d46d9ac7365aa3
-SIZE (msgpack-msgpack-c-c-4.0.0_GH0.tar.gz) = 74827
+TIMESTAMP = 1673367106
+SHA256 (msgpack-msgpack-c-c-5.0.0_GH0.tar.gz) = a61288a9a46fd3b3b4cbd48a17736a9568b65419141cb536833f9adfe8fc97d7
+SIZE (msgpack-msgpack-c-c-5.0.0_GH0.tar.gz) = 74924
diff --git a/devel/msgpack-c/pkg-plist b/devel/msgpack-c/pkg-plist
index 318b6ac6b8e0..a3b9fe351d6e 100644
--- a/devel/msgpack-c/pkg-plist
+++ b/devel/msgpack-c/pkg-plist
@@ -1,28 +1,28 @@
 include/msgpack.h
 include/msgpack/fbuffer.h
 include/msgpack/gcc_atomic.h
 include/msgpack/object.h
 include/msgpack/pack.h
 include/msgpack/pack_define.h
 include/msgpack/pack_template.h
 include/msgpack/sbuffer.h
 include/msgpack/sysdep.h
 include/msgpack/timestamp.h
 include/msgpack/unpack.h
 include/msgpack/unpack_define.h
 include/msgpack/unpack_template.h
 include/msgpack/util.h
 include/msgpack/version.h
 include/msgpack/version_master.h
 include/msgpack/vrefbuffer.h
 include/msgpack/zbuffer.h
 include/msgpack/zone.h
-lib/cmake/msgpack/msgpack-config-version.cmake
-lib/cmake/msgpack/msgpack-config.cmake
-lib/cmake/msgpack/msgpack-targets-%%CMAKE_BUILD_TYPE%%.cmake
-lib/cmake/msgpack/msgpack-targets.cmake
+lib/cmake/msgpackc/msgpackc-config-version.cmake
+lib/cmake/msgpackc/msgpackc-config.cmake
+lib/cmake/msgpackc/msgpackc-targets-%%CMAKE_BUILD_TYPE%%.cmake
+lib/cmake/msgpackc/msgpackc-targets.cmake
 lib/libmsgpackc.a
 lib/libmsgpackc.so
 lib/libmsgpackc.so.2
 lib/libmsgpackc.so.2.0.0
 libdata/pkgconfig/msgpack.pc