softcover.gemspec in softcover-1.5.10 vs softcover.gemspec in softcover-1.5.11

@@ -18,25 +18,25 @@
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
   gem.add_dependency 'polytexnic', '~> 1.5.14'
   gem.add_dependency 'msgpack', '~> 1.2.0'
-  gem.add_dependency 'nokogiri', '~> 1.10.8'
-  gem.add_dependency 'thor', '~> 0.18.1'
+  gem.add_dependency 'nokogiri', '>= 1.6.0', '< 2.0'
+  gem.add_dependency 'thor', '>= 0.18.1', '< 2.0'
   gem.add_dependency 'activesupport', '~> 4.2.3'
-  gem.add_dependency 'i18n', '~> 0.7.0'
-  gem.add_dependency 'rest-client', '~> 1.8.0'
-  gem.add_dependency 'curb', '~> 0.9.7'
+  gem.add_dependency 'i18n', '>= 0.7.0'
+  gem.add_dependency 'rest-client', '>= 1.8.0'
+  gem.add_dependency 'curb', '>= 0.9.7'
   gem.add_dependency 'ruby-progressbar', '~> 1.4.2'
   gem.add_dependency 'maruku', '~> 0.7.1'
   gem.add_dependency 'pygments.rb', '~> 1.2.1'
-  gem.add_dependency 'kramdown', '~> 1.17'
+  gem.add_dependency 'kramdown', '>= 1.6.0'
 
   gem.add_dependency 'sinatra', '~> 1.4.4'
   gem.add_dependency 'thin', '~> 1.6.1'
   gem.add_dependency 'async_sinatra', '~> 1.1.0'
   gem.add_dependency 'sinatra-respond_to', '~> 0.9.0'
-  gem.add_dependency 'coffee-script', '~> 2.2.0'
+  gem.add_dependency 'coffee-script', '>= 2.2.0'
   gem.add_dependency 'listen', '~> 1.3.1'
   gem.add_dependency 'rb-fsevent', '~> 0.9.3'
   gem.add_dependency 'sanitize', '~> 4.6.3'
 end