diff --git a/misc/ezc3d/Makefile b/misc/ezc3d/Makefile
index 0946f4c063b6..e38cca5c934d 100644
--- a/misc/ezc3d/Makefile
+++ b/misc/ezc3d/Makefile
@@ -1,26 +1,26 @@
 PORTNAME=	ezc3d
 DISTVERSIONPREFIX=	Release_
-DISTVERSION=	1.5.5
+DISTVERSION=	1.5.6
 CATEGORIES=	misc
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C3D (biomechanics data format) reader/writer for C++
 WWW=		https://github.com/pyomeca/ezc3d
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake:testing compiler:c++11-lang python:test
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	pyomeca
 GH_TUPLE=	google:googletest:3880b13:googletest/external/gtest # https://github.com/pyomeca/ezc3d/issues/256
 
 CMAKE_TESTING_ON=	BUILD_TESTS
 
 CMAKE_TESTING_TARGET=	gtest
 
 post-test:
 	@cd ${TEST_WRKSRC}/test && ./ezc3d_test
 
 .include <bsd.port.mk>
diff --git a/misc/ezc3d/distinfo b/misc/ezc3d/distinfo
index 1adcfc8aa30b..519ec9eff530 100644
--- a/misc/ezc3d/distinfo
+++ b/misc/ezc3d/distinfo
@@ -1,5 +1,5 @@
-TIMESTAMP = 1697008327
-SHA256 (pyomeca-ezc3d-Release_1.5.5_GH0.tar.gz) = 93641b100f982d4297a8cee9bb06b2c1facddfca638cde8259e783174a5f68ca
-SIZE (pyomeca-ezc3d-Release_1.5.5_GH0.tar.gz) = 947607
+TIMESTAMP = 1699953152
+SHA256 (pyomeca-ezc3d-Release_1.5.6_GH0.tar.gz) = 4557db6fc8d075a21734ce3968c1d294a71b8b8e94bbdf6953f69d3db7464772
+SIZE (pyomeca-ezc3d-Release_1.5.6_GH0.tar.gz) = 948122
 SHA256 (google-googletest-3880b13_GH0.tar.gz) = ea3d403a3de3ab084841ec97efa440fb45d5f2fbe4eb09a22ccb9643a6af11ba
 SIZE (google-googletest-3880b13_GH0.tar.gz) = 962793
diff --git a/misc/py-ezc3d/Makefile b/misc/py-ezc3d/Makefile
index b74846bb75ae..277297b4272c 100644
--- a/misc/py-ezc3d/Makefile
+++ b/misc/py-ezc3d/Makefile
@@ -1,55 +1,55 @@
 PORTNAME=	ezc3d
 DISTVERSIONPREFIX=	Release_
-DISTVERSION=	1.5.5
+DISTVERSION=	1.5.6
 CATEGORIES=	misc python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	C3D (biomechanics data format) reader/writer
 WWW=		https://github.com/pyomeca/ezc3d
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 BUILD_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}scikit-build>0:devel/py-scikit-build@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}wheel>0:devel/py-wheel@${PY_FLAVOR} \
 		cmake:devel/cmake-core \
 		swig:devel/swig
 RUN_DEPENDS=	${PYNUMPY}
 
 USES=		python
 USE_PYTHON=	distutils pytest # autoplist is broken due to https://github.com/pyomeca/ezc3d/issues/258 ; 3 tests fail, see https://github.com/pyomeca/ezc3d/issues/291
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	pyomeca
 GH_TUPLE=	google:googletest:3880b13:googletest/external/gtest # https://github.com/pyomeca/ezc3d/issues/256
 
 TEST_ARGS=	${WRKSRC}/test/python3
 TEST_ENV=	${MAKE_ENV} PYTHONPATH=${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}
 
 post-install:
 	# remove unnecessary C++ headers, see https://github.com/pyomeca/ezc3d/issues/258
 	@${RM} -r ${STAGEDIR}${PREFIX}/include/*
 	# strip binaries
 	@cd ${STAGEDIR}/${PYTHON_SITELIBDIR} && \
 		${STRIP_CMD} \
 			ezc3d/_ezc3d.so \
 			ezc3d/libezc3d.so
 
 pre-test: # download test c3d files
 	# download archives
 	@${MKDIR} ${WRKSRC}/test/c3dFiles
 	@cd ${WRKDIR} && ${FETCH_CMD} -q https://github.com/pyomeca/ezc3d-testFiles/archive/master.zip -o ${WRKSRC}/test/c3dFiles/ezc3d-testFiles-master.zip
 .for f in Sample01.zip Sample02.zip
 	@cd ${WRKDIR} && ${FETCH_CMD} -q https://www.c3d.org/data/${f} -o ${WRKSRC}/test/c3dFiles/${f}
 .endfor
 	# extract archives
 .for n in ezc3d-testFiles-master Sample01 Sample02
 	@cd ${WRKSRC}/test/c3dFiles && ${MKDIR} ${n} && cd ${n} && ${TAR} -xf ../${n}.zip
 .endfor
 	# move *.c3d files into a flat folder
 	@${MKDIR} ${WRKSRC}/test/c3dTestFiles
 	@${CP} `${FIND} ${WRKSRC} -name "*.c3d"` ${WRKSRC}/test/c3dTestFiles
 
 .include <bsd.port.mk>
diff --git a/misc/py-ezc3d/distinfo b/misc/py-ezc3d/distinfo
index a86cd0b3bde6..24e8f72f48ee 100644
--- a/misc/py-ezc3d/distinfo
+++ b/misc/py-ezc3d/distinfo
@@ -1,5 +1,5 @@
-TIMESTAMP = 1697011026
-SHA256 (pyomeca-ezc3d-Release_1.5.5_GH0.tar.gz) = 93641b100f982d4297a8cee9bb06b2c1facddfca638cde8259e783174a5f68ca
-SIZE (pyomeca-ezc3d-Release_1.5.5_GH0.tar.gz) = 947607
+TIMESTAMP = 1699953457
+SHA256 (pyomeca-ezc3d-Release_1.5.6_GH0.tar.gz) = 4557db6fc8d075a21734ce3968c1d294a71b8b8e94bbdf6953f69d3db7464772
+SIZE (pyomeca-ezc3d-Release_1.5.6_GH0.tar.gz) = 948122
 SHA256 (google-googletest-3880b13_GH0.tar.gz) = ea3d403a3de3ab084841ec97efa440fb45d5f2fbe4eb09a22ccb9643a6af11ba
 SIZE (google-googletest-3880b13_GH0.tar.gz) = 962793