Index: head/security/rubygem-scrypt/Makefile
===================================================================
--- head/security/rubygem-scrypt/Makefile	(revision 516530)
+++ head/security/rubygem-scrypt/Makefile	(revision 516531)
@@ -1,21 +1,21 @@
 # Created by: Sunpoet Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 # $FreeBSD$
 
 PORTNAME=	scrypt
 PORTVERSION=	3.0.6
 PORTREVISION=	1
 CATEGORIES=	security rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Scrypt key derivation function
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/COPYING
 
-RUN_DEPENDS=	rubygem-ffi-compiler>=1.0:devel/rubygem-ffi-compiler
+RUN_DEPENDS=	rubygem-ffi-compiler>=1.0<2.0:devel/rubygem-ffi-compiler
 
 USES=		gem
 USE_RUBY=	yes
 
 .include <bsd.port.mk>