diff --git a/math/py-graphillion/Makefile b/math/py-graphillion/Makefile
index ce5267fe9607..ae7f96c9adc9 100644
--- a/math/py-graphillion/Makefile
+++ b/math/py-graphillion/Makefile
@@ -1,31 +1,30 @@
 PORTNAME=	graphillion
-DISTVERSION=	2.0
+DISTVERSION=	2.1
 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
 
 BUILD_DEPENDS=	${PY_SETUPTOOLS} \
 		${PYTHON_PKGNAMEPREFIX}wheel>=0:devel/py-wheel@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	autoplist pep517
 
 post-patch:
 	@${REINPLACE_CMD} '/license-files/d; s|^license = "MIT"|license = { text = "MIT" }|' \
 		${WRKSRC}/pyproject.toml
 
 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 864a27497240..c0720692d4ad 100644
--- a/math/py-graphillion/distinfo
+++ b/math/py-graphillion/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1783540795
-SHA256 (graphillion-2.0.tar.gz) = 7b2a74ef244d634859178a8cd8796c0a72df56fdadb0c67c1fb8b8fd68917600
-SIZE (graphillion-2.0.tar.gz) = 1214026
+TIMESTAMP = 1783814373
+SHA256 (graphillion-2.1.tar.gz) = cd390a3af7cf68d8c3906448a2a85df78e76a7c38e52d475ca80d9367ad603dd
+SIZE (graphillion-2.1.tar.gz) = 1212426