Gemfile in groupdate-4.0.0 vs Gemfile in groupdate-4.0.1

@@ -1,6 +1,12 @@
 source "https://rubygems.org"
 
 # Specify your gem's dependencies in groupdate.gemspec
 gemspec
 
-gem "activerecord", "5.1.4" # "~> 5.1.0"
+gem "activerecord", "~> 5.2.0"
+
+if defined?(JRUBY_VERSION)
+  gem "activerecord-jdbcpostgresql-adapter", git: "https://github.com/jruby/activerecord-jdbc-adapter.git"
+  gem "activerecord-jdbcmysql-adapter", git: "https://github.com/jruby/activerecord-jdbc-adapter.git"
+  gem "activerecord-jdbcsqlite3-adapter", git: "https://github.com/jruby/activerecord-jdbc-adapter.git"
+end