diff --git a/math/igraph/Makefile b/math/igraph/Makefile
index 77576e4a38a2..71899fca7f58 100644
--- a/math/igraph/Makefile
+++ b/math/igraph/Makefile
@@ -1,33 +1,33 @@
 PORTNAME=	igraph
-DISTVERSION=	0.10.12
-PORTREVISION=	5
+DISTVERSION=	1.0.0
 CATEGORIES=	math
-MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/${DISTVERSION}/
 
 MAINTAINER=	wen@FreeBSD.org
 COMMENT=	Package For Manipulating Undirected And Directed Graphs
 WWW=		https://igraph.org/
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	${LOCALBASE}/bin/flex:textproc/flex
 LIB_DEPENDS=	libarpack.so:math/arpack-ng \
 		libcxsparse.so:math/suitesparse-cxsparse \
 		libglpk.so:math/glpk \
 		libgmp.so:math/gmp \
 		libopenblas.so:math/openblas
 
 USES=		bison cmake cpe gnome pathfix
 USE_GNOME=	libxml2
 USE_LDCONFIG=	yes
 
+USE_GITHUB=	yes
+
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_OFF=	BUILD_TESTING
 CMAKE_ARGS=	-DCMAKE_DISABLE_FIND_PACKAGE_Git:BOOL=True \
 		-DFLEX_EXECUTABLE:FILEPATH=${LOCALBASE}/bin/flex
 
 pre-configure:
 	@${ECHO} ${DISTVERSION} > ${WRKSRC}/IGRAPH_VERSION
 
 .include <bsd.port.mk>
diff --git a/math/igraph/distinfo b/math/igraph/distinfo
index 9fde4781e813..50814a7e5d6f 100644
--- a/math/igraph/distinfo
+++ b/math/igraph/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1718460118
-SHA256 (igraph-0.10.12.tar.gz) = b011f7f9f38a3e59924cc9ff652e6d33105fa03fcaf3792f47d752626a0a4625
-SIZE (igraph-0.10.12.tar.gz) = 4373463
+TIMESTAMP = 1761613271
+SHA256 (igraph-igraph-1.0.0_GH0.tar.gz) = 7101f2b13c7d6f8e33119ae150ad3886dbe1b74cca82c102f05645e7c7e81ea3
+SIZE (igraph-igraph-1.0.0_GH0.tar.gz) = 4118891
diff --git a/math/igraph/pkg-plist b/math/igraph/pkg-plist
index 8111307cd38c..8f016a454cef 100644
--- a/math/igraph/pkg-plist
+++ b/math/igraph/pkg-plist
@@ -1,95 +1,95 @@
 include/igraph/igraph.h
 include/igraph/igraph_adjlist.h
 include/igraph/igraph_arpack.h
-include/igraph/igraph_array.h
-include/igraph/igraph_array_pmt.h
 include/igraph/igraph_attributes.h
 include/igraph/igraph_bipartite.h
 include/igraph/igraph_bitset.h
 include/igraph/igraph_bitset_list.h
 include/igraph/igraph_blas.h
 include/igraph/igraph_centrality.h
 include/igraph/igraph_cliques.h
 include/igraph/igraph_cocitation.h
 include/igraph/igraph_cohesive_blocks.h
 include/igraph/igraph_coloring.h
 include/igraph/igraph_community.h
 include/igraph/igraph_complex.h
 include/igraph/igraph_components.h
 include/igraph/igraph_config.h
 include/igraph/igraph_constants.h
 include/igraph/igraph_constructors.h
 include/igraph/igraph_conversion.h
 include/igraph/igraph_cycles.h
 include/igraph/igraph_datatype.h
 include/igraph/igraph_decls.h
 include/igraph/igraph_dqueue.h
 include/igraph/igraph_dqueue_pmt.h
 include/igraph/igraph_eigen.h
 include/igraph/igraph_embedding.h
 include/igraph/igraph_epidemics.h
 include/igraph/igraph_error.h
 include/igraph/igraph_eulerian.h
 include/igraph/igraph_export.h
 include/igraph/igraph_flow.h
 include/igraph/igraph_foreign.h
 include/igraph/igraph_games.h
 include/igraph/igraph_graph_list.h
 include/igraph/igraph_graphicality.h
 include/igraph/igraph_graphlets.h
 include/igraph/igraph_heap.h
 include/igraph/igraph_heap_pmt.h
 include/igraph/igraph_hrg.h
 include/igraph/igraph_interface.h
 include/igraph/igraph_interrupt.h
+include/igraph/igraph_isomorphism.h
 include/igraph/igraph_iterators.h
 include/igraph/igraph_lapack.h
 include/igraph/igraph_layout.h
 include/igraph/igraph_lsap.h
 include/igraph/igraph_matching.h
 include/igraph/igraph_matrix.h
 include/igraph/igraph_matrix_list.h
 include/igraph/igraph_matrix_pmt.h
 include/igraph/igraph_memory.h
-include/igraph/igraph_microscopic_update.h
 include/igraph/igraph_mixing.h
 include/igraph/igraph_motifs.h
 include/igraph/igraph_neighborhood.h
 include/igraph/igraph_nongraph.h
 include/igraph/igraph_operators.h
 include/igraph/igraph_paths.h
 include/igraph/igraph_pmt.h
 include/igraph/igraph_pmt_off.h
 include/igraph/igraph_progress.h
 include/igraph/igraph_psumtree.h
 include/igraph/igraph_qsort.h
 include/igraph/igraph_random.h
 include/igraph/igraph_reachability.h
+include/igraph/igraph_sampling.h
 include/igraph/igraph_scan.h
 include/igraph/igraph_separators.h
+include/igraph/igraph_setup.h
 include/igraph/igraph_sparsemat.h
+include/igraph/igraph_spatial.h
 include/igraph/igraph_stack.h
 include/igraph/igraph_stack_pmt.h
 include/igraph/igraph_statusbar.h
 include/igraph/igraph_structural.h
 include/igraph/igraph_strvector.h
 include/igraph/igraph_threading.h
-include/igraph/igraph_topology.h
 include/igraph/igraph_transitivity.h
 include/igraph/igraph_typed_list_pmt.h
 include/igraph/igraph_types.h
 include/igraph/igraph_vector.h
 include/igraph/igraph_vector_list.h
 include/igraph/igraph_vector_pmt.h
 include/igraph/igraph_vector_ptr.h
 include/igraph/igraph_vector_type.h
 include/igraph/igraph_version.h
 include/igraph/igraph_visitor.h
 lib/cmake/igraph/igraph-config-version.cmake
 lib/cmake/igraph/igraph-config.cmake
 lib/cmake/igraph/igraph-targets-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/igraph/igraph-targets.cmake
 lib/libigraph.so
-lib/libigraph.so.3
-lib/libigraph.so.3.1.7
+lib/libigraph.so.4
+lib/libigraph.so.4.0.0
 libdata/pkgconfig/igraph.pc