diff --git a/math/py-graphillion/Makefile b/math/py-graphillion/Makefile
index f46339f6d45c..9f972575eedc 100644
--- a/math/py-graphillion/Makefile
+++ b/math/py-graphillion/Makefile
@@ -1,28 +1,26 @@
 PORTNAME=	graphillion
-PORTVERSION=	1.5
-PORTREVISION=	1
+DISTVERSION=	1.7
 CATEGORIES=	math python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
-DISTNAME=	${PORTNAME:S/g/G/}-${PORTVERSION}
+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}
 
-# Python 2.7,3.4+
 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 c6aa0a711344..01d619fd4adc 100644
--- a/math/py-graphillion/distinfo
+++ b/math/py-graphillion/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1646762733
-SHA256 (Graphillion-1.5.tar.gz) = 55cc9386ea115364df52e51a8af163dc3061a37a720ddc790ffda2162eb1673e
-SIZE (Graphillion-1.5.tar.gz) = 1233917
+TIMESTAMP = 1780239098
+SHA256 (Graphillion-1.7.tar.gz) = 2b239cdd025146eb684a2b9a46d77ab5381874240807d3161e5bb27b7966709f
+SIZE (Graphillion-1.7.tar.gz) = 1113710