Index: head/math/mathmod/Makefile
===================================================================
--- head/math/mathmod/Makefile	(revision 499911)
+++ head/math/mathmod/Makefile	(revision 499912)
@@ -1,24 +1,23 @@
 # Created by: thierry@pompo.net
 # $FreeBSD$
 
 PORTNAME=	MathMod
-PORTVERSION=	9.0
-PORTREVISION=	1
+PORTVERSION=	9.1
 CATEGORIES=	math graphics
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	Mathematical modeling software
 
 LICENSE=	GPLv2
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	parisolab
 GH_PROJECT=	${PORTNAME:tl}
 
 USES=		compiler:c++11-lang dos2unix gl qmake qt:5
 USE_GL=		gl
 USE_QT=		buildtools_build core gui opengl qmake_build widgets
 
 PLIST_FILES=	bin/${PORTNAME}
 
 .include <bsd.port.mk>
Index: head/math/mathmod/distinfo
===================================================================
--- head/math/mathmod/distinfo	(revision 499911)
+++ head/math/mathmod/distinfo	(revision 499912)
@@ -1,3 +1,3 @@
-TIMESTAMP = 1545240564
-SHA256 (parisolab-mathmod-9.0_GH0.tar.gz) = f9beb06861050e34811adbb4ce0d276bd9f6e5200c76f27b9dc0e5af719b4798
-SIZE (parisolab-mathmod-9.0_GH0.tar.gz) = 1137163
+TIMESTAMP = 1556136629
+SHA256 (parisolab-mathmod-9.1_GH0.tar.gz) = bb4295ed8961e67f1703fdbb0dd5046c4e2f45d652b9d3464eec6191406f6521
+SIZE (parisolab-mathmod-9.1_GH0.tar.gz) = 1137397