diff --git a/basket/dto/basket.go b/basket/dto/basket.go
index b89314d..2f7575e 100644
--- a/basket/dto/basket.go
+++ b/basket/dto/basket.go
@@ -19,7 +19,7 @@ type GetBasketItemsRequestDTO struct {
 type GetBasketItemsResponseDTO struct {
 	ID        string        `json:"id"`
 	BasketID  string        `json:"basket_id"`
-	ProductID int           `json:"product_id"`
+	ProductID string        `json:"product_id"`
 	Quantity  int           `json:"quantity"`
 	Price     float64       `json:"price"`
 	CreatedAt time.Duration `json:"created_at"`
diff --git a/basket/entity/basket.go b/basket/entity/basket.go
index c37f36b..22a2b5b 100644
--- a/basket/entity/basket.go
+++ b/basket/entity/basket.go
@@ -14,7 +14,7 @@ type BasketEntity struct {
 type BasketItemEntity struct {
 	ID        string           `db:"id" json:"id"`
 	BasketID  string           `db:"basket_id" json:"basket_id"`
-	ProductID int              `db:"product_id" json:"product_id"`
+	ProductID string           `db:"product_id" json:"product_id"`
 	Quantity  int              `db:"quantity" json:"quantity"`
 	Price     float64          `db:"price" json:"price"`
 	CreatedAt pgtype.Timestamp `db:"created_at" json:"created_at"`
diff --git a/basket/model/basket.go b/basket/model/basket.go
index c317217..998cc77 100644
--- a/basket/model/basket.go
+++ b/basket/model/basket.go
@@ -12,7 +12,7 @@ type Basket struct {
 
 type BasketItem struct {
 	BasketID  string    `db:"basket_id" json:"basket_id"`
-	ProductID int       `db:"product_id" json:"product_id"`
+	ProductID string    `db:"product_id" json:"product_id"`
 	Quantity  int       `db:"quantity" json:"quantity"`
 	Price     float64   `db:"price" json:"price"`
 	CreatedAt time.Time `db:"created_at" json:"created_at"`