diff --git a/math/py-chaospy/Makefile b/math/py-chaospy/Makefile
index a99ea1970bf5..f4d6eb4fcb70 100644
--- a/math/py-chaospy/Makefile
+++ b/math/py-chaospy/Makefile
@@ -1,22 +1,22 @@
 PORTNAME=	chaospy
-DISTVERSION=	4.2.7
+DISTVERSION=	4.3.1
 CATEGORIES=	math python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Toolbox for performing uncertainty quantification
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 RUN_DEPENDS=	${PYNUMPY} \
-		${PYTHON_PKGNAMEPREFIX}numpoly>0:math/py-numpoly@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}numpoly>=1.1.2:math/py-numpoly@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	distutils autoplist
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/math/py-chaospy/distinfo b/math/py-chaospy/distinfo
index f35cdcf1a196..36289f84bedf 100644
--- a/math/py-chaospy/distinfo
+++ b/math/py-chaospy/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1620945593
-SHA256 (chaospy-4.2.7.tar.gz) = 3959e612fab8827a9a45745d5243139d47c27348784aee1c5fa19c1447924c33
-SIZE (chaospy-4.2.7.tar.gz) = 154324
+TIMESTAMP = 1621666813
+SHA256 (chaospy-4.3.1.tar.gz) = 9909fb424838eb4a0cf47d9651cae51942b44fbe74ed01a17e5dbe8808d1dd41
+SIZE (chaospy-4.3.1.tar.gz) = 158884