diff --git a/devel/rubygem-r18n-core/Makefile b/devel/rubygem-r18n-core/Makefile
index ecc5c35aa905..08fb3503e67c 100644
--- a/devel/rubygem-r18n-core/Makefile
+++ b/devel/rubygem-r18n-core/Makefile
@@ -1,17 +1,19 @@
 PORTNAME=	r18n-core
-PORTVERSION=	5.0.1
+PORTVERSION=	6.0.0
 CATEGORIES=	devel rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	i18n tool to translate your Ruby application
 WWW=		https://github.com/r18n/r18n-core
 
 LICENSE=	LGPL3
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
+RUN_DEPENDS=	rubygem-bigdecimal>=4.0<5:math/rubygem-bigdecimal
+
 USES=		gem
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/devel/rubygem-r18n-core/distinfo b/devel/rubygem-r18n-core/distinfo
index cfa5d77aafe2..afac7c3024be 100644
--- a/devel/rubygem-r18n-core/distinfo
+++ b/devel/rubygem-r18n-core/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1618320934
-SHA256 (rubygem/r18n-core-5.0.1.gem) = 3a4e458e0291dc5c7b0bf6b456eceed036792d7db1bd286b1d72cbf250a46810
-SIZE (rubygem/r18n-core-5.0.1.gem) = 51200
+TIMESTAMP = 1771421940
+SHA256 (rubygem/r18n-core-6.0.0.gem) = d91250e22dec2d55870f7b14568055b9704aa99e77a7dfef950863f57dcbb064
+SIZE (rubygem/r18n-core-6.0.0.gem) = 52224