diff --git a/src/main/kotlin/Charge.kt b/src/main/kotlin/Charge.kt
index e03dbbd..21001f8 100644
--- a/src/main/kotlin/Charge.kt
+++ b/src/main/kotlin/Charge.kt
@@ -129,7 +129,7 @@ public data class ChargeDiscountFixedDate(
 
 @Serializable
 public data class ChargeDiscountSettings(
-  public val discountModality: ChargeDiscountModality,
+  public val modality: ChargeDiscountModality,
   public val discountFixedDate: List<ChargeDiscountFixedDate>,
 )
 
diff --git a/src/main/kotlin/Webhook.kt b/src/main/kotlin/Webhook.kt
index 2fafb49..30cf737 100644
--- a/src/main/kotlin/Webhook.kt
+++ b/src/main/kotlin/Webhook.kt
@@ -11,7 +11,7 @@ import kotlinx.serialization.Serializable
 
 @Serializable
 public data class WebhookPayload(
-  public val name: Int?,
+  public val name: String?,
   public val url: String?,
   public val authorization: String?,
   public val isActive: Boolean?,
@@ -109,7 +109,6 @@ public enum class WebhookEvent {
 
 public class WebhookBuilder internal constructor() {
   public var name: String? by Properties.nullable()
-  public var number: Int? by Properties.nullable()
   public var url: String? by Properties.nullable()
   public var authorization: String? by Properties.nullable()
   public var isActive: Boolean? by Properties.nullable()
@@ -124,15 +123,6 @@ public class WebhookBuilder internal constructor() {
     this.name = name
   }
 
-  /**
-   * The number of the webhook.
-   *
-   * @param number The number of the webhook.
-   */
-  public fun number(number: Int): WebhookBuilder = apply {
-    this.number = number
-  }
-
   /**
    * The url of the webhook.
    *
@@ -254,7 +244,7 @@ public class WebhookBuilder internal constructor() {
   internal fun build(): WebhookRequest {
     return WebhookRequest(
       webhook = WebhookPayload(
-        name = number,
+        name = name,
         url = url,
         authorization = authorization,
         isActive = isActive,
diff --git a/src/test/kotlin/ChargeTests.kt b/src/test/kotlin/ChargeTests.kt
index b0b221e..94c1676 100644
--- a/src/test/kotlin/ChargeTests.kt
+++ b/src/test/kotlin/ChargeTests.kt
@@ -84,7 +84,7 @@ class ChargeTests {
           type = ChargeType.DYNAMIC
           expiresDate = "2021-04-01"
           discountSettings = ChargeDiscountSettings(
-            discountModality = ChargeDiscountModality.FIXED_VALUE_UNTIL_SPECIFIED_DATE,
+            modality = ChargeDiscountModality.FIXED_VALUE_UNTIL_SPECIFIED_DATE,
             discountFixedDate = listOf(ChargeDiscountFixedDate(10, 1000))
           )
         }