--- net-smtp.gemspec.orig	2021-10-13 17:30:26 UTC
+++ net-smtp.gemspec
@@ -24,7 +24,6 @@ Gem::Specification.new do |s|
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_runtime_dependency(%q<net-protocol>.freeze, [">= 0"])
-      s.add_runtime_dependency(%q<digest>.freeze, [">= 0"])
       s.add_runtime_dependency(%q<timeout>.freeze, [">= 0"])
     else
       s.add_dependency(%q<net-protocol>.freeze, [">= 0"])
