diff --git a/Gemfile b/Gemfile
index 4338f338..1adffd90 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,6 +35,7 @@ end
 platforms :jruby do
   gem "jdbc-mysql"
   gem "jdbc-postgres"
+  gem "activerecord-jdbc-adapter", "70.0"
   gem "activerecord-jdbcsqlite3-adapter"
   gem "activerecord-jdbcmysql-adapter"
   gem "activerecord-jdbcpostgresql-adapter"