diff --git a/math/py-affine/Makefile b/math/py-affine/Makefile
index 25ff59b87a33..0f5231d20805 100644
--- a/math/py-affine/Makefile
+++ b/math/py-affine/Makefile
@@ -1,20 +1,20 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	affine
-PORTVERSION=	2.3.0
+PORTVERSION=	2.3.1
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Matrices describing affine transformation of the plane
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 USES=		python:3.6+
 USE_PYTHON=	autoplist concurrent distutils
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/math/py-affine/distinfo b/math/py-affine/distinfo
index e57e63a30052..208c1e17c528 100644
--- a/math/py-affine/distinfo
+++ b/math/py-affine/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1588930305
-SHA256 (affine-2.3.0.tar.gz) = 2e045def1aa29e613c42e801a7e10e0b9bacfed1a7c6af0cadf8843530a15102
-SIZE (affine-2.3.0.tar.gz) = 13946
+TIMESTAMP = 1649423820
+SHA256 (affine-2.3.1.tar.gz) = d676de66157ad6af99ffd94e0f54e89dfc35b0fb7252ead2ed0ad2dca431bdd0
+SIZE (affine-2.3.1.tar.gz) = 15556