Index: head/science/py-gsd/Makefile
===================================================================
--- head/science/py-gsd/Makefile	(revision 521894)
+++ head/science/py-gsd/Makefile	(revision 521895)
@@ -1,22 +1,22 @@
 # $FreeBSD$
 
 PORTNAME=	gsd
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.9.3
+DISTVERSION=	1.10.0
 CATEGORIES=	science python
 MASTER_SITES=	http://glotzerlab.engin.umich.edu/Downloads/gsd/
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	GSD (General Simulation Data) file format for Python
 
 LICENSE=	BSD2CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYNUMPY}
 BUILD_DEPENDS=	${PYNUMPY}
 
 USES=		python
-USE_PYTHON=	distutils autoplist
+USE_PYTHON=	distutils cython autoplist
 
 .include <bsd.port.mk>
Index: head/science/py-gsd/distinfo
===================================================================
--- head/science/py-gsd/distinfo	(revision 521894)
+++ head/science/py-gsd/distinfo	(revision 521895)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1570898731
-SHA256 (gsd-v1.9.3.tar.gz) = 89db85565b87d7a167ecf01881382ec4bc7280f07fe0295c2cf74af5db949231
-SIZE (gsd-v1.9.3.tar.gz) = 177157
+TIMESTAMP = 1578023096
+SHA256 (gsd-v1.10.0.tar.gz) = 6c121775106ee9073787fd3ea7c5608710f62a041d5e82b171247b057410aec3
+SIZE (gsd-v1.10.0.tar.gz) = 86383