diff --git a/mail/rubygem-net-smtp/Makefile b/mail/rubygem-net-smtp/Makefile
index 3b14d94be43d8..b26908fcf8878 100644
--- a/mail/rubygem-net-smtp/Makefile
+++ b/mail/rubygem-net-smtp/Makefile
@@ -1,7 +1,7 @@
 # Created by: Po-Chuan Hsieh <sunpoet@FreeBSD.org>
 
 PORTNAME=	net-smtp
-PORTVERSION=	0.3.0
+PORTVERSION=	0.3.1
 CATEGORIES=	mail rubygems
 MASTER_SITES=	RG
 
@@ -12,7 +12,8 @@ LICENSE=	BSD2CLAUSE RUBY
 LICENSE_COMB=	dual
 LICENSE_FILE_BSD2CLAUSE=${WRKSRC}/LICENSE.txt
 
-RUN_DEPENDS=	rubygem-net-protocol>=0:net/rubygem-net-protocol \
+RUN_DEPENDS=	rubygem-digest>=0:security/rubygem-digest \
+		rubygem-net-protocol>=0:net/rubygem-net-protocol \
 		rubygem-timeout>=0:devel/rubygem-timeout
 
 USES=		gem
diff --git a/mail/rubygem-net-smtp/distinfo b/mail/rubygem-net-smtp/distinfo
index 4b9bbf4055601..9fc28a92c7cf7 100644
--- a/mail/rubygem-net-smtp/distinfo
+++ b/mail/rubygem-net-smtp/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1634391246
-SHA256 (rubygem/net-smtp-0.3.0.gem) = 79361c21117aec9f9a19a104231c803f03f914c7d1bb1704d9792513cfb5c540
-SIZE (rubygem/net-smtp-0.3.0.gem) = 14848
+TIMESTAMP = 1641046734
+SHA256 (rubygem/net-smtp-0.3.1.gem) = 3af115c64d7aace0aa41f63a77f8e40707fd842a2de4bb24ebced6b4dd4465e8
+SIZE (rubygem/net-smtp-0.3.1.gem) = 15360
diff --git a/mail/rubygem-net-smtp/files/patch-gemspec b/mail/rubygem-net-smtp/files/patch-gemspec
deleted file mode 100644
index 1c60f29d311ca..0000000000000
--- a/mail/rubygem-net-smtp/files/patch-gemspec
+++ /dev/null
@@ -1,10 +0,0 @@
---- 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"])