attr_json.gemspec in attr_json-1.0.0 vs attr_json.gemspec in attr_json-1.1.0

@@ -46,10 +46,10 @@
   # should never release a gem with RAILS_GEM set!
   unless ENV['APPRAISAL_INITIALIZED'] || ENV["TRAVIS"]
     spec.add_runtime_dependency "activerecord", ">= 5.0.0", "< 6.1"
   end
 
-  spec.add_development_dependency "bundler", "~> 1.14"
+  spec.add_development_dependency "bundler"
   spec.add_development_dependency "rake", ">= 10.0"
   spec.add_development_dependency "rspec", "~> 3.7"
   spec.add_development_dependency "database_cleaner", "~> 1.5"
   spec.add_development_dependency "yard-activesupport-concern"
   spec.add_development_dependency "appraisal", "~> 2.2"