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`;')
+}