diff --git a/math/py-graphillion/Makefile b/math/py-graphillion/Makefile
index f9999f21f43e..77c5e89d455f 100644
--- a/math/py-graphillion/Makefile
+++ b/math/py-graphillion/Makefile
@@ -1,26 +1,26 @@
 PORTNAME=	graphillion
-DISTVERSION=	1.7.1
+DISTVERSION=	1.8
 CATEGORIES=	math python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 DISTNAME=	${PORTNAME:S/g/G/}-${DISTVERSION}
 
 MAINTAINER=	bofh@FreeBSD.org
 COMMENT=	Fast, lightweight graphset operation library in Python
 WWW=		https://github.com/takemaru/graphillion
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}future>0:devel/py-future@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	autoplist distutils
 
 post-install:
 	${STRIP_CMD} ${STAGEDIR}${PYTHONPREFIX_SITELIBDIR}/_graphillion*.so
 
 do-test:
 	@cd ${WRKSRC} && ${PYTHON_CMD} ${PYDISTUTILS_SETUP} test
 
 .include <bsd.port.mk>
diff --git a/math/py-graphillion/distinfo b/math/py-graphillion/distinfo
index fac11e17ae09..14951e54b01c 100644
--- a/math/py-graphillion/distinfo
+++ b/math/py-graphillion/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1780850787
-SHA256 (Graphillion-1.7.1.tar.gz) = eb1fae61a865f4993fa72da7efbdbb12d00b25e4ec21c55bc1be3bc5edfa708c
-SIZE (Graphillion-1.7.1.tar.gz) = 1101162
+TIMESTAMP = 1782603486
+SHA256 (Graphillion-1.8.tar.gz) = 1154d8a98e050b143d5c4de058debc93383570207c1edd66f21e0adaffd8addc
+SIZE (Graphillion-1.8.tar.gz) = 1116291