diff --git a/backend/src/config/index.ts b/backend/src/config/index.ts
index 8143e7b92..754bfbf08 100644
--- a/backend/src/config/index.ts
+++ b/backend/src/config/index.ts
@@ -10,7 +10,7 @@ Decimal.set({
 })
 
 const constants = {
-  DB_VERSION: '0032-add-transaction-link-to-transaction',
+  DB_VERSION: '0033-add_referrer_id',
   DECAY_START_TIME: new Date('2021-05-13 17:46:31'), // GMT+0
 }
 
diff --git a/backend/src/graphql/resolver/UserResolver.test.ts b/backend/src/graphql/resolver/UserResolver.test.ts
index 66e435207..f873fd694 100644
--- a/backend/src/graphql/resolver/UserResolver.test.ts
+++ b/backend/src/graphql/resolver/UserResolver.test.ts
@@ -101,6 +101,7 @@ describe('UserResolver', () => {
               language: 'de',
               deletedAt: null,
               publisherId: 1234,
+              referrerId: null,
             },
           ])
         })
diff --git a/database/entity/0033-add_referrer_id/User.ts b/database/entity/0033-add_referrer_id/User.ts
new file mode 100644
index 000000000..48c804b63
--- /dev/null
+++ b/database/entity/0033-add_referrer_id/User.ts
@@ -0,0 +1,78 @@
+import {
+  BaseEntity,
+  Entity,
+  PrimaryGeneratedColumn,
+  Column,
+  OneToMany,
+  DeleteDateColumn,
+} from 'typeorm'
+import { UserSetting } from '../UserSetting'
+
+@Entity('users', { engine: 'InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci' })
+export class User extends BaseEntity {
+  @PrimaryGeneratedColumn('increment', { unsigned: true })
+  id: number
+
+  @Column({ name: 'public_key', type: 'binary', length: 32, default: null, nullable: true })
+  pubKey: Buffer
+
+  @Column({ name: 'privkey', type: 'binary', length: 80, default: null, nullable: true })
+  privKey: Buffer
+
+  @Column({ length: 255, unique: true, nullable: false, collation: 'utf8mb4_unicode_ci' })
+  email: string
+
+  @Column({
+    name: 'first_name',
+    length: 255,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  firstName: string
+
+  @Column({
+    name: 'last_name',
+    length: 255,
+    nullable: true,
+    default: null,
+    collation: 'utf8mb4_unicode_ci',
+  })
+  lastName: string
+
+  @DeleteDateColumn()
+  deletedAt: Date | null
+
+  @Column({ type: 'bigint', default: 0, unsigned: true })
+  password: BigInt
+
+  @Column({ name: 'email_hash', type: 'binary', length: 32, default: null, nullable: true })
+  emailHash: Buffer
+
+  @Column({ name: 'created', default: () => 'CURRENT_TIMESTAMP', nullable: false })
+  createdAt: Date
+
+  @Column({ name: 'email_checked', type: 'bool', nullable: false, default: false })
+  emailChecked: boolean
+
+  @Column({ length: 4, default: 'de', collation: 'utf8mb4_unicode_ci', nullable: false })
+  language: string
+
+  @Column({ name: 'referrer_id', type: 'int', unsigned: true, nullable: true, default: null })
+  referrerId?: number | null
+
+  @Column({ name: 'publisher_id', default: 0 })
+  publisherId: number
+
+  @Column({
+    type: 'text',
+    name: 'passphrase',
+    collation: 'utf8mb4_unicode_ci',
+    nullable: true,
+    default: null,
+  })
+  passphrase: string
+
+  @OneToMany(() => UserSetting, (userSetting) => userSetting.user)
+  settings: UserSetting[]
+}
diff --git a/database/entity/User.ts b/database/entity/User.ts
index d2c201c54..35dfb7bbe 100644
--- a/database/entity/User.ts
+++ b/database/entity/User.ts
@@ -1 +1 @@
-export { User } from './0023-users_disabled_soft_delete/User'
+export { User } from './0033-add_referrer_id/User'
diff --git a/database/migrations/0033-add_referrer_id.ts b/database/migrations/0033-add_referrer_id.ts
new file mode 100644
index 000000000..e45d1faf7
--- /dev/null
+++ b/database/migrations/0033-add_referrer_id.ts
@@ -0,0 +1,14 @@
+/* MIGRATION TO ADD referrer_id FIELD TO users */
+
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
+/* eslint-disable @typescript-eslint/no-explicit-any */
+
+export async function upgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  await queryFn(
+    'ALTER TABLE `users` ADD COLUMN `referrer_id` int UNSIGNED DEFAULT NULL AFTER `language`;',
+  )
+}
+
+export async function downgrade(queryFn: (query: string, values?: any[]) => Promise<Array<any>>) {
+  await queryFn('ALTER TABLE `users` DROP COLUMN `referrer_id`;')
+}