diff --git a/backend/.eslintrc.json b/backend/.eslintrc.json
index 2ebe3c9..17e8e9c 100644
--- a/backend/.eslintrc.json
+++ b/backend/.eslintrc.json
@@ -17,6 +17,7 @@
   "plugins": ["@typescript-eslint", "prettier"],
   "rules": {
     "no-console": "off",
+    "no-param-reassign": "off",
     "prettier/prettier": "error",
     "import/extensions": [
       "error",
diff --git a/backend/package.json b/backend/package.json
index e4c5684..46fec36 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -30,6 +30,7 @@
     "yup": "^0.29.3"
   },
   "devDependencies": {
+    "@types/bcryptjs": "^2.4.2",
     "@types/bluebird": "^3.5.32",
     "@types/cors": "^2.8.7",
     "@types/express": "^4.17.8",
diff --git a/backend/src/models/User.ts b/backend/src/models/User.ts
index 76b71b3..ad08c66 100644
--- a/backend/src/models/User.ts
+++ b/backend/src/models/User.ts
@@ -4,24 +4,23 @@ import {
   CreatedAt,
   UpdatedAt,
   Model,
-  DataType
+  DataType,
+  BeforeCreate,
+  BeforeUpdate
 } from "sequelize-typescript";
+import { hash, compare } from "bcryptjs";
 
 @Table
 class User extends Model<User> {
-  @Column({
-    defaultValue: DataType.UUIDV4,
-    primaryKey: true,
-    type: DataType.UUID
-  })
-  id: string;
-
   @Column
   name: string;
 
   @Column
   email: string;
 
+  @Column(DataType.VIRTUAL)
+  password: string;
+
   @Column
   passwordHash: string;
 
@@ -36,47 +35,20 @@ class User extends Model<User> {
   @UpdatedAt
   updatedAt: Date;
 
-  // @BeforeUpdate
-  // @BeforeInsert
-  // hashPassword = async () => {
-  //   if (this.passwordHash) {
-  //     this.passwordHash = await hash(this.passwordHash, 8);
-  //   }
-  // };
+  @BeforeUpdate
+  @BeforeCreate
+  static hashPassword = async (instance: User): Promise<void> => {
+    if (instance.password) {
+      instance.passwordHash = await hash(instance.password, 8);
+    }
+  };
 
-  // checkPassword = async (password: string) => {
-  //   return await compare(password, this.passwordHash);
+  // static checkPassword = async ( // maybe not work like this.
+  //   instance: User,
+  //   password: string
+  // ): Promise<boolean> => {
+  //   return compare(password, instance.passwordHash);
   // };
 }
 
 export default User;
-
-// const bcrypt = require("bcryptjs");
-// @Table
-// class User extends Model<User> {
-//   static init(sequelize) {
-//     super.init(
-//       {
-//         name: { type: Sequelize.STRING },
-//         password: { type: Sequelize.VIRTUAL },
-//         profile: { type: Sequelize.STRING, defaultValue: "admin" },
-//         passwordHash: { type: Sequelize.STRING },
-//         email: { type: Sequelize.STRING }
-//       },
-//       {
-//         sequelize
-//       }
-//     );
-
-//     this.addHook("beforeSave", async user => {
-//       if (user.password) {
-//         user.passwordHash = await bcrypt.hash(user.password, 8);
-//       }
-//     });
-//     return this;
-//   }
-
-//   checkPassword(password) {
-//     return bcrypt.compare(password, this.passwordHash);
-//   }
-// }
diff --git a/backend/src/services/CreateUserService.ts b/backend/src/services/CreateUserService.ts
index edeeaa7..65363bf 100644
--- a/backend/src/services/CreateUserService.ts
+++ b/backend/src/services/CreateUserService.ts
@@ -42,7 +42,7 @@ const CreateUserService = async ({
 
   const user = User.create({
     email,
-    passwordHash: password,
+    password,
     name,
     profile
   });
diff --git a/backend/yarn.lock b/backend/yarn.lock
index d498fb3..f19d8b9 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -152,6 +152,11 @@
   dependencies:
     defer-to-connect "^1.0.1"
 
+"@types/bcryptjs@^2.4.2":
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/@types/bcryptjs/-/bcryptjs-2.4.2.tgz#e3530eac9dd136bfdfb0e43df2c4c5ce1f77dfae"
+  integrity sha512-LiMQ6EOPob/4yUL66SZzu6Yh77cbzJFYll+ZfaPiPPFswtIlA/Fs1MzdKYA7JApHU49zQTbJGX3PDmCpIdDBRQ==
+
 "@types/bluebird@^3.5.32":
   version "3.5.32"
   resolved "https://registry.yarnpkg.com/@types/bluebird/-/bluebird-3.5.32.tgz#381e7b59e39f010d20bbf7e044e48f5caf1ab620"