diff --git a/math/libsemigroups/Makefile b/math/libsemigroups/Makefile
index d5fb635aa3fb..6753a729a586 100644
--- a/math/libsemigroups/Makefile
+++ b/math/libsemigroups/Makefile
@@ -1,37 +1,37 @@
 PORTNAME=	libsemigroups
-PORTVERSION=	3.5.1
+PORTVERSION=	3.5.3
 DISTVERSIONPREFIX=	v
 CATEGORIES=	math
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	C++ library for semigroups and monoids
 WWW=		https://libsemigroups.readthedocs.io/en/latest/
 
 LICENSE=	GPLv3
 
 BUILD_DEPENDS=	HPCombi>0:math/hpcombi
 LIB_DEPENDS=	libfmt.so:devel/libfmt
 
 USE_GITHUB=	yes
 
 USES=		autoreconf compiler:c++17-lang eigen:3,build \
 		libtool pathfix pkgconfig
 
 GNU_CONFIGURE=	yes
 CONFIGURE_ARGS=	--with-external-fmt=yes	\
 		--with-external-eigen	\
 		--enable-hpcombi
 LIBS=		-lm
 USE_LDCONFIG=	yes
 INSTALL_TARGET=	install-strip
 TEST_TARGET=	check
 
 .include <bsd.port.pre.mk>
 
 .if ${ARCH} != amd64
 CONFIGURE_ARGS+=	--disable-hpcombi
 .else
 CONFIGURE_ARGS+=	--enable-hpcombi
 .endif
 
 .include <bsd.port.post.mk>
diff --git a/math/libsemigroups/distinfo b/math/libsemigroups/distinfo
index 4367d2a44c7b..3fbb3ca599f7 100644
--- a/math/libsemigroups/distinfo
+++ b/math/libsemigroups/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1772374684
-SHA256 (libsemigroups-libsemigroups-v3.5.1_GH0.tar.gz) = 3fc89be4161018d54e16f72a6c37fbcf9ac8b2338c2e9bc79b3f4ccd87079b1c
-SIZE (libsemigroups-libsemigroups-v3.5.1_GH0.tar.gz) = 9749370
+TIMESTAMP = 1773866171
+SHA256 (libsemigroups-libsemigroups-v3.5.3_GH0.tar.gz) = 4162c7fa29ad50a3d0c24606da06da7e6d1fac25c08a74ce556143b4367293ca
+SIZE (libsemigroups-libsemigroups-v3.5.3_GH0.tar.gz) = 10055791