Merge pull request #1535 from HonkingGoose/asciidoctor_2.0.10

Pin dependencies

Author: jnavila

Gemfile

@@ -1,15 +1,15 @@
 source 'https://rubygems.org'
 
-gem 'rake'
+gem 'rake', ' 13.0.1'
 gem 'asciidoctor', '2.0.10'
 
-gem 'json'
-gem 'awesome_print'
+gem 'json', '2.3.1'
+gem 'awesome_print', '1.8.0'
 
 gem 'asciidoctor-epub3', '1.5.0.alpha.18'
 gem 'asciidoctor-pdf', '1.5.3'
 
-gem 'coderay'
-gem 'pygments.rb'
-gem 'thread_safe'
-gem 'epubcheck'
+gem 'coderay', '1.1.3'
+gem 'pygments.rb', '1.2.1'
+gem 'thread_safe', '0.3.6'
+gem 'epubcheck', '3.0.1'