mass_insert.gemspec in mass_insert-0.2.1 vs mass_insert.gemspec in mass_insert-0.2.2

@@ -17,7 +17,13 @@
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ['lib']
 
   spec.required_ruby_version = '>= 2.0.0'
+
   spec.add_dependency 'activerecord', '>= 4.0'
+
+  spec.add_development_dependency 'pg', '~> 0.18'
+  spec.add_development_dependency 'rake', '~> 11.1'
+  spec.add_development_dependency 'mysql2', '~> 0.4'
+  spec.add_development_dependency 'sqlite3', '~> 1.3'
 end