diff --git a/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb b/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb
index 69ba3b843f..9c44b34ad6 100644
--- a/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/bind_parameter_test.rb
@@ -2,6 +2,7 @@
 
 require "cases/helper"
 require "models/topic"
+require "models/post"
 
 module ActiveRecord
   module ConnectionAdapters
diff --git a/activerecord/test/cases/adapters/postgresql/bind_parameter_test.rb b/activerecord/test/cases/adapters/postgresql/bind_parameter_test.rb
index 0c8db67d68..ada99fb67e 100644
--- a/activerecord/test/cases/adapters/postgresql/bind_parameter_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/bind_parameter_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "cases/helper"
+require "models/post"
 
 module ActiveRecord
   module ConnectionAdapters
diff --git a/activerecord/test/cases/adapters/sqlite3/bind_parameter_test.rb b/activerecord/test/cases/adapters/sqlite3/bind_parameter_test.rb
index 08f5a72368..39d7a8520a 100644
--- a/activerecord/test/cases/adapters/sqlite3/bind_parameter_test.rb
+++ b/activerecord/test/cases/adapters/sqlite3/bind_parameter_test.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require "cases/helper"
+require "models/post"
 
 module ActiveRecord
   module ConnectionAdapters