diff --git a/japanese/rubygem-mail-iso-2022-jp/Makefile b/japanese/rubygem-mail-iso-2022-jp/Makefile
index 4389cc753469..11f5f81eea4d 100644
--- a/japanese/rubygem-mail-iso-2022-jp/Makefile
+++ b/japanese/rubygem-mail-iso-2022-jp/Makefile
@@ -1,22 +1,23 @@
 PORTNAME=	mail-iso-2022-jp
 PORTVERSION=	2.1.0
+PORTREVISION=	1
 CATEGORIES=	japanese mail rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	ruby@FreeBSD.org
 COMMENT=	Provides 'mail' gem with iso-2022-jp conversion capability
 WWW=		https://github.com/kuroda/mail-iso-2022-jp
 
 LICENSE=	MIT
 
-RUN_DEPENDS=	rubygem-mail>=2.6.1,2<2.8.1_99,2:mail/rubygem-mail
+RUN_DEPENDS=	rubygem-mail>=2.6.1,2:mail/rubygem-mail
 
 USES=		gem
 
 NO_ARCH=	yes
 
 .include <bsd.port.pre.mk>
 
 PKGNAMEPREFIX:=	${PKGNAMEPREFIX}rubygem-
 
 .include <bsd.port.post.mk>
diff --git a/japanese/rubygem-mail-iso-2022-jp/files/patch-gemspec b/japanese/rubygem-mail-iso-2022-jp/files/patch-gemspec
new file mode 100644
index 000000000000..69a74a3724db
--- /dev/null
+++ b/japanese/rubygem-mail-iso-2022-jp/files/patch-gemspec
@@ -0,0 +1,11 @@
+--- mail-iso-2022-jp.gemspec.orig	2026-05-20 00:44:28 UTC
++++ mail-iso-2022-jp.gemspec
+@@ -20,7 +20,7 @@ Gem::Specification.new do |s|
+ 
+   s.specification_version = 4
+ 
+-  s.add_runtime_dependency(%q<mail>.freeze, [">= 2.2.6".freeze, "<= 2.8.1".freeze])
++  s.add_runtime_dependency(%q<mail>.freeze, [">= 2.2.6".freeze])
+   s.add_development_dependency(%q<actionmailer>.freeze, [">= 3.0.0".freeze, "< 7.0".freeze])
+   s.add_development_dependency(%q<rdoc>.freeze, [">= 3.12".freeze, "< 5.0".freeze])
+ end