Index: head/science/rubygem-rgeo-proj4/Makefile
===================================================================
--- head/science/rubygem-rgeo-proj4/Makefile	(revision 510126)
+++ head/science/rubygem-rgeo-proj4/Makefile	(revision 510127)
@@ -1,23 +1,23 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	rgeo-proj4
 PORTVERSION=	2.0.0
 CATEGORIES=	science rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Proj.4 extension for RGeo
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 LIB_DEPENDS=	libproj.so:graphics/proj
-RUN_DEPENDS=	rubygem-rgeo>=2.0:science/rubygem-rgeo
+RUN_DEPENDS=	rubygem-rgeo>=2.0<3:science/rubygem-rgeo
 
 USES=		gem
 USE_RUBY=	yes
 
 CONFIGURE_ARGS=	--with-proj-dir=${LOCALBASE}
 
 .include <bsd.port.mk>