diff --git a/pom.xml b/pom.xml
index 4156cce..b105299 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>org.unq-ui</groupId>
     <artifactId>mercadolibreModel</artifactId>
-    <version>1.3.0</version>
+    <version>1.4.0</version>
     <packaging>jar</packaging>
 
     <name>org.example mercadolibreModel</name>
diff --git a/readme.md b/readme.md
index 9167db9..7bd0773 100644
--- a/readme.md
+++ b/readme.md
@@ -22,7 +22,7 @@ Agregar la dependencia:
 <dependency>
     <groupId>com.github.unq-ui</groupId>
     <artifactId>mercadolibre-model</artifactId>
-    <version>v1.3.0</version>
+    <version>v1.4.0</version>
 </dependency>
 ```
 
@@ -194,7 +194,7 @@ class MercadoLibreService {
      * Completes a purchase for a user.
      * @param idUser The user's ID.
      * @param payment The payment information.
-     * @throws BuyException if the cart is empty or items are out of stock.
+     * @throws PurchaseException if the cart is empty or items are out of stock.
      * @throws UserException if the user is not found.
      */
     fun purchase(idUser: String, payment: Payment)
@@ -257,7 +257,7 @@ class User(
     val email: String,
     var password: String,
     val image: String,
-    val buyHistory: MutableList<BuyHistory>,
+    val purchaseHistory: MutableList<PurchaseHistory>,
     val products: MutableList<Product>,
     val likedProducts: MutableList<Product>,
     val salesHistory: MutableList<SaleHistory>
@@ -277,7 +277,7 @@ class SaleHistory(
     val user: User,
 )
 
-class BuyHistory(
+class PurchaseHistory(
     val items: MutableList<Item>,
     val payment: Payment,
     val date: LocalDateTime,
diff --git a/src/main/kotlin/model/DataClasses.kt b/src/main/kotlin/model/DataClasses.kt
index 84b517c..94ea409 100644
--- a/src/main/kotlin/model/DataClasses.kt
+++ b/src/main/kotlin/model/DataClasses.kt
@@ -30,7 +30,7 @@ class SaleHistory(
     val user: User,
 )
 
-class BuyHistory(
+class PurchaseHistory(
     val items: MutableList<Item>,
     val payment: Payment,
     val date: LocalDateTime,
@@ -44,7 +44,7 @@ class User(
     val email: String,
     var password: String,
     val image: String,
-    val buyHistory: MutableList<BuyHistory>,
+    val purchaseHistory: MutableList<PurchaseHistory>,
     val products: MutableList<Product>,
     val likedProducts: MutableList<Product>,
     val salesHistory: MutableList<SaleHistory>
diff --git a/src/main/kotlin/model/Exceptions.kt b/src/main/kotlin/model/Exceptions.kt
index cd1f083..029d9f8 100644
--- a/src/main/kotlin/model/Exceptions.kt
+++ b/src/main/kotlin/model/Exceptions.kt
@@ -6,7 +6,7 @@ class ProductException(msg: String): Exception(msg)
 
 class PageException(msg: String): Exception(msg)
 
-class BuyException(msg: String): Exception(msg)
+class PurchaseException(msg: String): Exception(msg)
 
 class CategoryException(msg: String): Exception(msg)
 
diff --git a/src/main/kotlin/service/MercadoLibreService.kt b/src/main/kotlin/service/MercadoLibreService.kt
index 0cdfbf7..4a6230e 100644
--- a/src/main/kotlin/service/MercadoLibreService.kt
+++ b/src/main/kotlin/service/MercadoLibreService.kt
@@ -273,13 +273,13 @@ class MercadoLibreService {
      * Completes a purchase for a user.
      * @param idUser The user's ID.
      * @param payment The payment information.
-     * @throws BuyException if the cart is empty or items are out of stock.
+     * @throws PurchaseException if the cart is empty or items are out of stock.
      * @throws UserException if the user is not found.
      */
     fun purchase(idUser: String, payment: Payment) {
         val user = getUser(idUser)
         val cart = getCart(idUser)
-        if (cart.items.isEmpty()) throw BuyException("Cart is empty")
+        if (cart.items.isEmpty()) throw PurchaseException("Cart is empty")
         if (cart.items.all { it.product.stock >= it.amount }) {
             cart.items.forEach {
                 it.product.stock -= it.amount
@@ -287,10 +287,10 @@ class MercadoLibreService {
                     SaleHistory(it.product, it.amount, payment, LocalDateTime.now(), cart.user)
                 )
             }
-            user.buyHistory.add(BuyHistory(cart.items, payment, LocalDateTime.now()))
+            user.purchaseHistory.add(PurchaseHistory(cart.items, payment, LocalDateTime.now()))
             carts.remove(cart)
         } else {
-            throw BuyException("Unable to complete the purchase because one or more items are out of stock.")
+            throw PurchaseException("Unable to complete the purchase because one or more items are out of stock.")
         }
     }
 
diff --git a/src/test/kotlin/service/MercadoLibreServiceTest.kt b/src/test/kotlin/service/MercadoLibreServiceTest.kt
index 82e6a5b..baeee4a 100644
--- a/src/test/kotlin/service/MercadoLibreServiceTest.kt
+++ b/src/test/kotlin/service/MercadoLibreServiceTest.kt
@@ -334,7 +334,7 @@ class MercadoLibreServiceTest {
         mercadoLibreService.updateItemCart(buyer.id, p1.id, 1)
 
         assertEquals(seller.salesHistory.size, 0)
-        assertEquals(buyer.buyHistory.size, 0)
+        assertEquals(buyer.purchaseHistory.size, 0)
         assertEquals(p1.stock, 10)
 
         val payment = Payment("3333", LocalDateTime.now(), "333", "pepe")
@@ -346,8 +346,8 @@ class MercadoLibreServiceTest {
         assertEquals(seller.salesHistory[0].product, p1)
         assertEquals(seller.salesHistory[0].payment, payment)
 
-        assertEquals(buyer.buyHistory.size, 1)
-        assertEquals(buyer.buyHistory[0].items[0].product, p1)
+        assertEquals(buyer.purchaseHistory.size, 1)
+        assertEquals(buyer.purchaseHistory[0].items[0].product, p1)
 
         assertEquals(p1.stock, 9)
     }
@@ -356,7 +356,7 @@ class MercadoLibreServiceTest {
     fun purchaseWithoutItemsTest() {
         val mercadoLibreService = MercadoLibreService()
         val buyer = mercadoLibreService.registerNewUser(getDraftNewUser("user"))
-        assertFailsWith<BuyException> {
+        assertFailsWith<PurchaseException> {
             mercadoLibreService.purchase(buyer.id, Payment("3333", LocalDateTime.now(), "333", "pepe"))
         }
     }
@@ -369,7 +369,7 @@ class MercadoLibreServiceTest {
         val p1 = mercadoLibreService.addProduct(seller.id, getDraftProduct("product"))
         mercadoLibreService.updateItemCart(buyer.id, p1.id, 100)
 
-        assertFailsWith<BuyException> {
+        assertFailsWith<PurchaseException> {
             mercadoLibreService.purchase(buyer.id, Payment("3333", LocalDateTime.now(), "333", "pepe"))
         }
     }