jekyll-diagrams.gemspec in jekyll-diagrams-0.4.0 vs jekyll-diagrams.gemspec in jekyll-diagrams-0.4.1

@@ -1,19 +1,17 @@
-# coding: utf-8
-
 $LOAD_PATH.unshift File.expand_path('../lib', __FILE__)
 
 require 'jekyll/diagrams/version'
 
 Gem::Specification.new do |spec|
-  spec.required_ruby_version = ">= 1.9.3"
+  spec.required_ruby_version = ">= 2.3.7"
 
   spec.name          = "jekyll-diagrams"
   spec.version       = Jekyll::Diagrams::VERSION
   spec.authors       = ["zhustec"]
   spec.email         = "[e-mail]"
 
-  spec.summary       = "Jekyll diagrams support"
+  spec.summary       = "Jekyll plugins for diagrams support"
   spec.description   = "Jekyll plugins for diagrams support, including Graphviz, Blockdiag, Seqdiag and so on."
   spec.homepage      = "https://github.com/zhustec/jekyll-diagrams"
   spec.license       = "MIT"
 
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }