Gem::Specification#date is set automatically by RubyGems.org.

Author: hsbt

json.gemspec

@@ -7,7 +7,6 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.require_paths = ["lib"]
   s.authors = ["Florian Frank"]
-  s.date = "2019-02-21"
   s.description = "This is a JSON implementation as a Ruby extension in C."
   s.email = "flori@ping.de"
   s.extensions = ["ext/json/ext/generator/extconf.rb", "ext/json/ext/parser/extconf.rb", "ext/json/extconf.rb"]