diff --git a/devel/py-guppy3/Makefile b/devel/py-guppy3/Makefile
index 63d07bfe7524..98f9ae3d195a 100644
--- a/devel/py-guppy3/Makefile
+++ b/devel/py-guppy3/Makefile
@@ -1,34 +1,34 @@
 PORTNAME=	guppy3
 PORTVERSION=	3.1.5
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel python
 MASTER_SITES=	PYPI
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	Python Programming Environment & Heap analysis toolset
 WWW=		https://github.com/zhuyifei1999/guppy3/
 
 LICENSE=	MIT
 
 #USE_GITHUB=	yes
 #GH_ACCOUNT=	zhuyifei1999
 
 USES=		python
-USE_PYTHON=	cython distutils
+USE_PYTHON=	cython3 distutils
 
 OPTIONS_DEFINE=	X11
 OPTIONS_DEFAULT=X11
 X11_RUN_DEPENDS=${PYTHON_PKGNAMEPREFIX}tkinter>0:x11-toolkits/py-tkinter@${PY_FLAVOR}
 
 .if ! defined(WITH_DEBUG)
 LDFLAGS+=	-s
 .endif
 
 TMPDIR?=	/tmp
 
 do-test: install
 	(cd ${TMPDIR} &&	\
 	${PYTHON_CMD} -c "from guppy import hpy; hpy().test()")
 
 .include <bsd.port.mk>