diff --git a/math/igraph/Makefile b/math/igraph/Makefile
index 7c42e54fbdc7..805db0815e5b 100644
--- a/math/igraph/Makefile
+++ b/math/igraph/Makefile
@@ -1,36 +1,37 @@
 # Created by: Wen Heping <wenheping@gmail.com>
 
 PORTNAME=	igraph
-PORTVERSION=	0.9.6
+DISTVERSION=	0.9.6
 CATEGORIES=	math
+MASTER_SITES=	https://github.com/${PORTNAME}/${PORTNAME}/releases/download/${DISTVERSION}/
 
 MAINTAINER=	wen@FreeBSD.org
 COMMENT=	Package For Manipulating Undirected And Directed Graphs
 
 LICENSE=	GPLv2
+LICENSE_FILE=	${WRKSRC}/COPYING
 
 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 libtool pathfix
-USE_GITHUB=	yes
+USES=		bison cmake cpe gnome pathfix
 USE_GNOME=	libxml2
 USE_LDCONFIG=	yes
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 
 BINARY_ALIAS=	git=false
 
 pre-configure:
-	@${ECHO} ${PORTVERSION} > ${WRKSRC}/IGRAPH_VERSION
+	@${ECHO} ${DISTVERSION} > ${WRKSRC}/IGRAPH_VERSION
 
 .include <bsd.port.pre.mk>
 .if (${OSVERSION} >= 1300000 && ${OSVERSION} < 1300523) || \
 	(${OSVERSION} >= 1200000 && ${OSVERSION} < 1203500)
 EXTRA_PATCHES=	${PATCHDIR}/extra-patch-etc_cmake_compilers.cmake
 .endif
 
 .include <bsd.port.post.mk>
diff --git a/math/igraph/distinfo b/math/igraph/distinfo
index 8f9bc9212591..f0561bb8c197 100644
--- a/math/igraph/distinfo
+++ b/math/igraph/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1644973362
-SHA256 (igraph-igraph-0.9.6_GH0.tar.gz) = 940e24aeae3a0b2711c1a1ccad1fd541148e4bf4ad4080cc11b5495bffd7ccca
-SIZE (igraph-igraph-0.9.6_GH0.tar.gz) = 3098476
+TIMESTAMP = 1645110935
+SHA256 (igraph-0.9.6.tar.gz) = 7c299ec54eecfe413758c332a42c4cb71d02d2951b2ac232584d317c5792f387
+SIZE (igraph-0.9.6.tar.gz) = 3945276