--- mail-iso-2022-jp.gemspec.orig	2023-01-23 05:55:47 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", "<= 2.7.1"])
+  s.add_runtime_dependency(%q<mail>.freeze, [">= 2.8.0"])
   s.add_development_dependency(%q<actionmailer>.freeze, [">= 3.0.0", "< 7.0"])
   s.add_development_dependency(%q<rdoc>.freeze, [">= 3.12", "< 5.0"])
 end
