diff --git a/math/suitesparse-graphblas/Makefile b/math/suitesparse-graphblas/Makefile
index 775d8e8a9775..8446b864f23b 100644
--- a/math/suitesparse-graphblas/Makefile
+++ b/math/suitesparse-graphblas/Makefile
@@ -1,32 +1,32 @@
 PORTNAME=	${MPORTNAME:tl}
-PORTVERSION=	8.3.1
+PORTVERSION=	9.0.0
 CATEGORIES=	math
 
 COMMENT=	Graph algorithms in the language of linear algebra
-WWW=		https://faculty.cse.tamu.edu/davis/suitesparse.html
+WWW=		https://graphblas.org/
 
 LICENSE=	APACHE20
 
 USES=		localbase:ldflags pathfix
 
 MPORTNAME=	GraphBLAS
 CMAKE_ARGS+=	-DGRAPHBLAS_COMPACT:BOOL=On	\
 		-DGRAPHBLAS_USE_JIT:BOOL=On
 USE_LDCONFIG=	yes
 
 PORTDOCS=	CSC20_OpenMP_GraphBLAS.pdf Davis_HPEC18.pdf	\
-		GraphBLAS_API_C_2.0.0.pdf	\
+		GraphBLAS_API_C_v2.1.0.pdf	\
 		GraphBLAS_UserGuide.pdf HPEC19.pdf	\
 		HPEC20_Python_and_MATLAB.pdf lagraph-grapl19.pdf	\
 		toms_graphblas.pdf toms_parallel_grb2.pdf	\
 		The_GraphBLAS_in_Julia_and_Python_the_PageRank_and_Triangle_Centralities.pdf
 
 .include "${.CURDIR}/../../math/suitesparse/bsd.suitesparse.mk"
 
 post-stage-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 .for doc in ${PORTDOCS}
 	${INSTALL_DATA} ${BUILD_WRKSRC}/Doc/${doc} ${STAGEDIR}${DOCSDIR}
 .endfor
 
 .include <bsd.port.post.mk>
diff --git a/math/suitesparse-graphblas/pkg-descr b/math/suitesparse-graphblas/pkg-descr
index ad52d8d47987..26b6ffa6d448 100644
--- a/math/suitesparse-graphblas/pkg-descr
+++ b/math/suitesparse-graphblas/pkg-descr
@@ -1,9 +1,11 @@
 This port installs the module GraphBLAS of SuiteSparse.
 
 SuiteSparse:GraphBLAS is a complete implementation of the GraphBLAS
 standard, which defines a set of sparse matrix operations on an extended
 algebra of semirings using an almost unlimited variety of operators and
 types. When applied to sparse adjacency matrices, these algebraic
 operations are equivalent to computations on graphs. GraphBLAS provides
 a powerful and expressive framework for creating graph algorithms based
 on the elegant mathematics of sparse matrix operations on a semiring.
+
+See also <https://github.com/GraphBLAS/>.
diff --git a/math/suitesparse-graphblas/pkg-plist b/math/suitesparse-graphblas/pkg-plist
index 75ebd7a20188..c4151a9f76fe 100644
--- a/math/suitesparse-graphblas/pkg-plist
+++ b/math/suitesparse-graphblas/pkg-plist
@@ -1,9 +1,9 @@
 include/suitesparse/GraphBLAS.h
 lib/cmake/GraphBLAS/GraphBLASConfig.cmake
 lib/cmake/GraphBLAS/GraphBLASConfigVersion.cmake
 lib/cmake/GraphBLAS/GraphBLASTargets-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/GraphBLAS/GraphBLASTargets.cmake
 lib/libgraphblas.so
-lib/libgraphblas.so.8
+lib/libgraphblas.so.9
 lib/libgraphblas.so.%%VER%%
 libdata/pkgconfig/GraphBLAS.pc