diff --git a/Gemfile b/Gemfile
index 2bffeedb..082c8618 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,5 +15,5 @@ gem 'twitter-text', '~> 3.1'
 gem "wikicloth", "= 0.8.3"
 gem 'asciidoctor', '~> 2.0', '>= 2.0.21'
 gem 'rake', '~> 13.1'
-gem 'paru', '~> 1.2.0'
+gem 'pandoc-ruby', '~> 2.1.10'
 
diff --git a/lib/github/markups.rb b/lib/github/markups.rb
index 6a2e4bf5..5adf4ab4 100644
--- a/lib/github/markups.rb
+++ b/lib/github/markups.rb
@@ -1,7 +1,7 @@
 require "github/markup/markdown"
 require "github/markup/rdoc"
 require "shellwords"
-require "paru/pandoc"
+require 'pandoc-ruby'
 
 markup_impl(::GitHub::Markups::MARKUP_MARKDOWN, ::GitHub::Markup::Markdown.new)
 
@@ -48,12 +48,8 @@
   Asciidoctor.convert(content, :safe => :secure, :attributes => attributes)
 end
 
-markup(::GitHub::Markups::MARKUP_RST, :paru, /re?st(\.txt)?/, ["rst"]) do |filename, content, options: {}|
-  output = Paru::Pandoc.new do
-    from "rst"
-    to "html"
-  end << content
-  puts output
+markup(::GitHub::Markups::MARKUP_RST, :pandoc-ruby, /re?st(\.txt)?/, ["reStructuredText"]) do |filename, content, options: {}|
+  PandocRuby.new(content, from: "rst").to_html
 end
 
 command(::GitHub::Markups::MARKUP_POD6, :pod62html, /pod6/, ["Pod 6"], "pod6")