diff --git a/packages/server/src/account/account.entity.ts b/packages/server/src/account/account.entity.ts
index 524b2fc3..e5f9277e 100644
--- a/packages/server/src/account/account.entity.ts
+++ b/packages/server/src/account/account.entity.ts
@@ -12,7 +12,7 @@ import {
 @Entity()
 export class Account {
   @PrimaryGeneratedColumn()
-  id: string;
+  id: number;
 
   @Column('double')
   KRW: number;