diff --git a/math/py-chaospy/Makefile b/math/py-chaospy/Makefile
index 6956574c80b4..4c767b7e0c43 100644
--- a/math/py-chaospy/Makefile
+++ b/math/py-chaospy/Makefile
@@ -1,25 +1,32 @@
 PORTNAME=	chaospy
-DISTVERSION=	4.3.4
+DISTVERSION=	4.3.6
 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} \
-		${PYTHON_PKGNAMEPREFIX}numpoly>=1.1.2:math/py-numpoly@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}matplotlib>0:math/py-matplotlib@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}numpoly>0:math/py-numpoly@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR}
 
 USES=		python:3.6+
 USE_PYTHON=	distutils autoplist
 
 NO_ARCH=	yes
 
+pre-configure:
+	@( \
+		${ECHO} "from setuptools import setup" && \
+		${ECHO} "setup()" \
+	) > ${WRKSRC}/setup.py
+
 do-test: # tests fail: https://github.com/jonathf/chaospy/issues/366
 	@cd ${WRKSRC} && pytest --doctest-modules chaospy/
 
 .include <bsd.port.mk>
diff --git a/math/py-chaospy/distinfo b/math/py-chaospy/distinfo
index e78c64c1284e..6c3c09d61ed8 100644
--- a/math/py-chaospy/distinfo
+++ b/math/py-chaospy/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1641247224
-SHA256 (chaospy-4.3.4.tar.gz) = 67c9bbb14cd70acfe6d32cade0b09e664358148fc5169a6374c21c8a77f26db7
-SIZE (chaospy-4.3.4.tar.gz) = 158951
+TIMESTAMP = 1644596700
+SHA256 (chaospy-4.3.6.tar.gz) = 4992de6f7c67d6edd14a73b371a08a46f0084ee7903d998ca93a218dfb368b0a
+SIZE (chaospy-4.3.6.tar.gz) = 2423883