diff --git a/math/nanoflann/Makefile b/math/nanoflann/Makefile
index 79c85a62926b..d0dbac2311c6 100644
--- a/math/nanoflann/Makefile
+++ b/math/nanoflann/Makefile
@@ -1,39 +1,39 @@
 PORTNAME=	nanoflann
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.5.0
+DISTVERSION=	1.5.3
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Header-only library for Nearest Neighbor (NN) search with KD-trees
 WWW=		https://github.com/jlblancoc/nanoflann
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 USES=		cmake
 USE_GITHUB=	yes
 GH_ACCOUNT=	jlblancoc
 
 CMAKE_OFF=	NANOFLANN_BUILD_EXAMPLES NANOFLANN_BUILD_TESTS
 
 NO_ARCH=	yes
 
 PLIST_FILES=	include/nanoflann.hpp \
 		${DATADIR}/cmake/nanoflannConfig.cmake \
 		${DATADIR}/cmake/nanoflannConfigVersion.cmake \
 		${DATADIR}/cmake/nanoflannTargets.cmake \
 		libdata/pkgconfig/nanoflann.pc
 
 do-test:
 	@cd ${BUILD_WRKSRC} && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -DNANOFLANN_BUILD_TESTS=ON ${CMAKE_SOURCE_PATH} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${ALL_TARGET} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} test
 
 benchmarks: build # benchmarks fail to run: https://github.com/jlblancoc/nanoflann/issues/100
 	@cd ${BUILD_WRKSRC} && \
 		${SETENV} ${CONFIGURE_ENV} ${CMAKE_BIN} ${CMAKE_ARGS} -DBUILD_BENCHMARKS=ON ${CMAKE_SOURCE_PATH} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} ${ALL_TARGET} && \
 		${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} benchmarks
 
 .include <bsd.port.mk>
diff --git a/math/nanoflann/distinfo b/math/nanoflann/distinfo
index f110fdf4fd15..64c1202829af 100644
--- a/math/nanoflann/distinfo
+++ b/math/nanoflann/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1686983113
-SHA256 (jlblancoc-nanoflann-v1.5.0_GH0.tar.gz) = 89aecfef1a956ccba7e40f24561846d064f309bc547cc184af7f4426e42f8e65
-SIZE (jlblancoc-nanoflann-v1.5.0_GH0.tar.gz) = 518665
+TIMESTAMP = 1702264765
+SHA256 (jlblancoc-nanoflann-v1.5.3_GH0.tar.gz) = 850119b57226c12d03dfc73075771da4feae994e35e82d352e5f7b295a41fec2
+SIZE (jlblancoc-nanoflann-v1.5.3_GH0.tar.gz) = 520298