diff --git a/lib/webrick/version.rb b/lib/webrick/version.rb
index d9b9f877a2..96ff88c80b 100644
--- a/lib/webrick/version.rb
+++ b/lib/webrick/version.rb
@@ -14,5 +14,5 @@ module WEBrick
   ##
   # The WEBrick version
 
-  VERSION      = "1.4.0.beta1"
+  VERSION      = "1.4.0"
 end
diff --git a/lib/webrick/webrick.gemspec b/lib/webrick/webrick.gemspec
index 34821b8ac5..b2b4ad6caf 100644
--- a/lib/webrick/webrick.gemspec
+++ b/lib/webrick/webrick.gemspec
@@ -1,11 +1,10 @@
 # frozen_string_literal: true
-$LOAD_PATH.unshift File.expand_path('../lib', __FILE__)
-require 'webrick/version'
+require_relative 'version'
 
 Gem::Specification.new do |s|
   s.name = "webrick"
   s.version = WEBrick::VERSION
-  s.date = '2017-05-01'
+  s.date = '2017-12-14'
   s.summary = "HTTP server toolkit"
   s.description = "WEBrick is an HTTP server toolkit that can be configured as an HTTPS server, a proxy server, and a virtual-host server."
 
@@ -13,8 +12,8 @@ Gem::Specification.new do |s|
   s.files =  ["lib/webrick.rb", "lib/webrick/accesslog.rb", "lib/webrick/cgi.rb", "lib/webrick/compat.rb", "lib/webrick/config.rb", "lib/webrick/cookie.rb", "lib/webrick/htmlutils.rb", "lib/webrick/httpauth.rb", "lib/webrick/httpauth/authenticator.rb", "lib/webrick/httpauth/basicauth.rb", "lib/webrick/httpauth/digestauth.rb", "lib/webrick/httpauth/htdigest.rb", "lib/webrick/httpauth/htgroup.rb", "lib/webrick/httpauth/htpasswd.rb", "lib/webrick/httpauth/userdb.rb", "lib/webrick/httpauth.rb", "lib/webrick/httpproxy.rb", "lib/webrick/httprequest.rb", "lib/webrick/httpresponse.rb", "lib/webrick/https.rb", "lib/webrick/httpserver.rb", "lib/webrick/httpservlet.rb", "lib/webrick/httpservlet/abstract.rb", "lib/webrick/httpservlet/cgi_runner.rb", "lib/webrick/httpservlet/cgihandler.rb", "lib/webrick/httpservlet/erbhandler.rb", "lib/webrick/httpservlet/filehandler.rb", "lib/webrick/httpservlet/prochandler.rb", "lib/webrick/httpservlet.rb", "lib/webrick/httpstatus.rb", "lib/webrick/httputils.rb", "lib/webrick/httpversion.rb", "lib/webrick/log.rb", "lib/webrick/server.rb", "lib/webrick/ssl.rb", "lib/webrick/utils.rb", "lib/webrick/version.rb"]
   s.required_ruby_version = ">= 2.5.0dev"
 
-  s.authors = ["TAKAHASHI Masayoshi", "GOTOU YUUZOU"]
-  s.email = [nil, nil]
+  s.authors = ["TAKAHASHI Masayoshi", "GOTOU YUUZOU", "Eric Wong"]
+  s.email = [nil, nil, 'normal@ruby-lang.org']
   s.homepage = "https://www.ruby-lang.org"
   s.license = "BSD-2-Clause"