gemfiles/Gemfile.rails-6.0 in activity_notification-2.2.3 vs gemfiles/Gemfile.rails-6.0 in activity_notification-2.2.4

@@ -1,10 +1,11 @@
 source 'https://rubygems.org'
 
 gemspec path: '../'
 
 gem 'rails', '~> 6.0.0'
+gem 'psych', '< 4'
 
 group :development do
   gem 'bullet'
   gem 'rack-cors'
 end
@@ -12,10 +13,10 @@
 group :test do
   gem 'rails-controller-testing'
   gem 'ammeter'
   gem 'timecop'
   gem 'committee'
-  gem 'committee-rails'
+  gem 'committee-rails', '< 0.6'
   # gem 'coveralls', require: false
   gem 'coveralls_reborn', require: false
 end
 
 gem 'dotenv-rails', groups: [:development, :test]