diff --git a/backend/services/wallet-service/prisma/migrations/20241204000000_init/migration.sql b/backend/services/wallet-service/prisma/migrations/20241204000000_init/migration.sql
index 5183d318..9e4a2691 100644
--- a/backend/services/wallet-service/prisma/migrations/20241204000000_init/migration.sql
+++ b/backend/services/wallet-service/prisma/migrations/20241204000000_init/migration.sql
@@ -1,7 +1,7 @@
 -- CreateTable
 CREATE TABLE "wallet_accounts" (
     "wallet_id" BIGSERIAL NOT NULL,
-    "account_sequence" BIGINT NOT NULL,
+    "account_sequence" VARCHAR(20) NOT NULL,
     "user_id" BIGINT NOT NULL,
     "usdt_available" DECIMAL(20,8) NOT NULL DEFAULT 0,
     "usdt_frozen" DECIMAL(20,8) NOT NULL DEFAULT 0,
@@ -33,7 +33,7 @@ CREATE TABLE "wallet_accounts" (
 -- CreateTable
 CREATE TABLE "wallet_ledger_entries" (
     "entry_id" BIGSERIAL NOT NULL,
-    "account_sequence" BIGINT NOT NULL,
+    "account_sequence" VARCHAR(20) NOT NULL,
     "user_id" BIGINT NOT NULL,
     "entry_type" VARCHAR(50) NOT NULL,
     "amount" DECIMAL(20,8) NOT NULL,
@@ -51,7 +51,7 @@ CREATE TABLE "wallet_ledger_entries" (
 -- CreateTable
 CREATE TABLE "deposit_orders" (
     "order_id" BIGSERIAL NOT NULL,
-    "account_sequence" BIGINT NOT NULL,
+    "account_sequence" VARCHAR(20) NOT NULL,
     "user_id" BIGINT NOT NULL,
     "chain_type" VARCHAR(20) NOT NULL,
     "amount" DECIMAL(20,8) NOT NULL,
@@ -82,7 +82,7 @@ CREATE TABLE "settlement_orders" (
 CREATE TABLE "withdrawal_orders" (
     "order_id" BIGSERIAL NOT NULL,
     "order_no" VARCHAR(50) NOT NULL,
-    "account_sequence" BIGINT NOT NULL,
+    "account_sequence" VARCHAR(20) NOT NULL,
     "user_id" BIGINT NOT NULL,
     "amount" DECIMAL(20,8) NOT NULL,
     "fee" DECIMAL(20,8) NOT NULL,