attr_json.gemspec in attr_json-0.5.0 vs attr_json.gemspec in attr_json-0.6.0

@@ -43,10 +43,10 @@
   spec.required_ruby_version = '>= 2.4.0'
 
   # Only to get CI to work on versions of Rails other than we release with,
   # should never release a gem with RAILS_GEM set!
   unless ENV['APPRAISAL_INITIALIZED'] || ENV["TRAVIS"]
-    spec.add_runtime_dependency "activerecord", ">= 5.0.0", "< 5.3"
+    spec.add_runtime_dependency "activerecord", ">= 5.0.0", "< 6.1"
   end
 
   spec.add_development_dependency "bundler", "~> 1.14"
   spec.add_development_dependency "rake", ">= 10.0"
   spec.add_development_dependency "rspec", "~> 3.7"