Index: head/science/py-gsd/Makefile
===================================================================
--- head/science/py-gsd/Makefile	(revision 509409)
+++ head/science/py-gsd/Makefile	(revision 509410)
@@ -1,22 +1,22 @@
 # $FreeBSD$
 
 PORTNAME=	gsd
 DISTVERSIONPREFIX=	v
-DISTVERSION=	1.7.0
+DISTVERSION=	1.8.1
 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
 
 .include <bsd.port.mk>
Index: head/science/py-gsd/distinfo
===================================================================
--- head/science/py-gsd/distinfo	(revision 509409)
+++ head/science/py-gsd/distinfo	(revision 509410)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1564284170
-SHA256 (gsd-v1.7.0.tar.gz) = 6c496bf6c64bada82dfd4524dd16d273523f2a4ea93c3a2608ff30bd25076a85
-SIZE (gsd-v1.7.0.tar.gz) = 247973
+TIMESTAMP = 1566283559
+SHA256 (gsd-v1.8.1.tar.gz) = bb38d00b83b982904aade2013d0072f66c84faa52cec01df1b23cbbf62707b68
+SIZE (gsd-v1.8.1.tar.gz) = 167476