diff --git a/migrations/20230225002115-auto-increment-groups-characters.js b/migrations/20230225002115-auto-increment-groups-characters.js
new file mode 100644
index 0000000..864c30c
--- /dev/null
+++ b/migrations/20230225002115-auto-increment-groups-characters.js
@@ -0,0 +1,22 @@
+'use strict';
+
+/** @type {import('sequelize-cli').Migration} */
+module.exports = {
+  async up (queryInterface, Sequelize) {
+    await queryInterface.sequelize.query("SET FOREIGN_KEY_CHECKS = 0;")
+    await queryInterface.sequelize.query("ALTER TABLE `Groups` AUTO_INCREMENT=999999999;")
+    await queryInterface.sequelize.query("ALTER TABLE Characters AUTO_INCREMENT=999999999;")
+    await queryInterface.sequelize.query("ALTER TABLE `Groups` MODIFY id INT NOT NULL AUTO_INCREMENT;")
+    await queryInterface.sequelize.query("ALTER TABLE Characters MODIFY id INT NOT NULL AUTO_INCREMENT;")
+    await queryInterface.sequelize.query("SET FOREIGN_KEY_CHECKS = 1;")
+  },
+  
+  async down (queryInterface, Sequelize) {
+    await queryInterface.sequelize.query("SET FOREIGN_KEY_CHECKS = 0;")
+    await queryInterface.sequelize.query("ALTER TABLE `Groups` AUTO_INCREMENT=1;")
+    await queryInterface.sequelize.query("ALTER TABLE Characters AUTO_INCREMENT=1;")
+    await queryInterface.sequelize.query("ALTER TABLE `Groups` MODIFY id INT NOT NULL;")
+    await queryInterface.sequelize.query("ALTER TABLE Characters MODIFY id INT NOT NULL;")
+    await queryInterface.sequelize.query("SET FOREIGN_KEY_CHECKS = 1;")
+  }
+};