diff --git a/gemfiles/mysql2/master.gemfile b/gemfiles/mysql2/master.gemfile
index 2fa7be31..99e92d13 100644
--- a/gemfiles/mysql2/master.gemfile
+++ b/gemfiles/mysql2/master.gemfile
@@ -6,6 +6,7 @@ gem "rake"
 
 group :test do
   platforms :jruby do
+    gem "activerecord-jdbc-adapter", github: "jruby/activerecord-jdbc-adapter"
     gem "activerecord-jdbcmysql-adapter", github: "jruby/activerecord-jdbc-adapter"
   end
 
diff --git a/gemfiles/postgresql/master.gemfile b/gemfiles/postgresql/master.gemfile
index 8e6af335..511e8aa0 100644
--- a/gemfiles/postgresql/master.gemfile
+++ b/gemfiles/postgresql/master.gemfile
@@ -6,6 +6,7 @@ gem "rake"
 
 group :test do
   platforms :jruby do
+    gem "activerecord-jdbc-adapter", github: "jruby/activerecord-jdbc-adapter"
     gem "activerecord-jdbcpostgresql-adapter", github: "jruby/activerecord-jdbc-adapter"
   end
 
diff --git a/gemfiles/sqlite3/master.gemfile b/gemfiles/sqlite3/master.gemfile
index e2342249..ba1d78f7 100644
--- a/gemfiles/sqlite3/master.gemfile
+++ b/gemfiles/sqlite3/master.gemfile
@@ -6,6 +6,7 @@ gem "rake"
 
 group :test do
   platforms :jruby do
+    gem "activerecord-jdbc-adapter", github: "jruby/activerecord-jdbc-adapter"
     gem "activerecord-jdbcsqlite3-adapter", github: "jruby/activerecord-jdbc-adapter"
   end