5.0.gemfile in elasticsearch-model-6.1.1

- old
+ new

@@ -8,10 +8,10 @@
 gemspec path: '../'
 
 gem 'activemodel',  '~> 5'
 gem 'activerecord', '~> 5'
 gem 'sqlite3' unless defined?(JRUBY_VERSION)
-gem 'mongoid', '~> 6'
+gem 'mongoid', '~> 6.4'
 
 group :development, :testing do
   gem 'rspec'
   gem 'pry-nav'
 end