diff --git a/math/igraph/Makefile b/math/igraph/Makefile
index 991293edf933..7c42e54fbdc7 100644
--- a/math/igraph/Makefile
+++ b/math/igraph/Makefile
@@ -1,35 +1,36 @@
 # Created by: Wen Heping <wenheping@gmail.com>
 
 PORTNAME=	igraph
-PORTVERSION=	0.9.5
+PORTVERSION=	0.9.6
 CATEGORIES=	math
 
 MAINTAINER=	wen@FreeBSD.org
 COMMENT=	Package For Manipulating Undirected And Directed Graphs
 
 LICENSE=	GPLv2
 
 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
 USE_GNOME=	libxml2
 USE_LDCONFIG=	yes
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 
 BINARY_ALIAS=	git=false
 
 pre-configure:
 	@${ECHO} ${PORTVERSION} > ${WRKSRC}/IGRAPH_VERSION
 
 .include <bsd.port.pre.mk>
-.if ${OSVERSION} >= 1300000 && ${OSVERSION} < 1300523
+.if (${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 a9f2dfbad79f..8f9bc9212591 100644
--- a/math/igraph/distinfo
+++ b/math/igraph/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1640258918
-SHA256 (igraph-igraph-0.9.5_GH0.tar.gz) = 50f68ef937fe8023602f254613e8e0983ce0417d9b409366c34716e56e213eb8
-SIZE (igraph-igraph-0.9.5_GH0.tar.gz) = 3055876
+TIMESTAMP = 1644973362
+SHA256 (igraph-igraph-0.9.6_GH0.tar.gz) = 940e24aeae3a0b2711c1a1ccad1fd541148e4bf4ad4080cc11b5495bffd7ccca
+SIZE (igraph-igraph-0.9.6_GH0.tar.gz) = 3098476