diff --git a/TelegramBots.wiki/Changelog.md b/TelegramBots.wiki/Changelog.md
index aeb6b287..ea7af23b 100644
--- a/TelegramBots.wiki/Changelog.md
+++ b/TelegramBots.wiki/Changelog.md
@@ -5,6 +5,7 @@
 4. Added extra validation to methods before performing requests.
 5. BotOptions has been renamed ot DefaultBotOptions. It allows now to set number of threads for async methods execution and the complete `RequestConfig` for customization purpose.
 6. Added convenient method for `setChatId` using just a `Long` value instead of an String.
-7. Moved to MIT license
+7. In `SentCallback` method `onError` changed second parameter to `TelegramApiRequestException` and `onResult` now receives the deserialized answer (of type `T`) instead of a `JSONObject` as second parameter
+8. Moved to MIT license
 
 **[[How to update to version 2.4.1|How-To-Update#2.4.1]]**
\ No newline at end of file
diff --git a/TelegramBots.wiki/How-To-Update.md b/TelegramBots.wiki/How-To-Update.md
index fd8f7c57..efdf8c81 100644
--- a/TelegramBots.wiki/How-To-Update.md
+++ b/TelegramBots.wiki/How-To-Update.md
@@ -4,6 +4,7 @@
     ```java
     ApiContextInitializer.init();
     ```
+3. In `SentCallback`, update parameter types of `onResult` and `onError`. Inside those two method, you don't need to deserialize anything now, it comes already done.
 3. **Deprecated** (will be removed in next version):
     * `org.telegram.telegrambots.bots.BotOptions`. Use `org.telegram.telegrambots.bots.DefaultBotOptions` instead.
     * `getPersonal` from `AnswerInlineQuery`. Use `isPersonal` instead.
diff --git a/telegrambots-meta/src/main/java/org/telegram/telegrambots/updateshandlers/SentCallback.java b/telegrambots-meta/src/main/java/org/telegram/telegrambots/updateshandlers/SentCallback.java
index f2ec83ce..d7a3bf56 100644
--- a/telegrambots-meta/src/main/java/org/telegram/telegrambots/updateshandlers/SentCallback.java
+++ b/telegrambots-meta/src/main/java/org/telegram/telegrambots/updateshandlers/SentCallback.java
@@ -1,7 +1,7 @@
 package org.telegram.telegrambots.updateshandlers;
 
-import org.json.JSONObject;
 import org.telegram.telegrambots.api.methods.BotApiMethod;
+import org.telegram.telegrambots.exceptions.TelegramApiRequestException;
 
 import java.io.Serializable;
 
@@ -15,16 +15,16 @@ public interface SentCallback<T extends Serializable> {
     /**
      * Called when the request is successful
      * @param method Method executed
-     * @param jsonObject Answer from Telegram server
+     * @param response Answer from Telegram server
      */
-    void onResult(BotApiMethod<T> method, JSONObject jsonObject);
+    void onResult(BotApiMethod<T> method, T response);
 
     /**
      * Called when the request fails
      * @param method Method executed
-     * @param jsonObject Answer from Telegram server (contains error information)
+     * @param apiException Answer from Telegram server (contains error information)
      */
-    void onError(BotApiMethod<T> method, JSONObject jsonObject);
+    void onError(BotApiMethod<T> method, TelegramApiRequestException apiException);
 
     /**
      * Called when the http request throw an exception
diff --git a/telegrambots/src/main/java/org/telegram/telegrambots/bots/DefaultAbsSender.java b/telegrambots/src/main/java/org/telegram/telegrambots/bots/DefaultAbsSender.java
index 40eef66d..f008f1a7 100644
--- a/telegrambots/src/main/java/org/telegram/telegrambots/bots/DefaultAbsSender.java
+++ b/telegrambots/src/main/java/org/telegram/telegrambots/bots/DefaultAbsSender.java
@@ -18,7 +18,6 @@ import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClientBuilder;
 import org.apache.http.message.BasicNameValuePair;
 import org.apache.http.util.EntityUtils;
-import org.json.JSONObject;
 import org.telegram.telegrambots.ApiConstants;
 import org.telegram.telegrambots.api.methods.BotApiMethod;
 import org.telegram.telegrambots.api.methods.send.SendAudio;
@@ -643,12 +642,11 @@ public abstract class DefaultAbsSender extends AbsSender{
                         HttpEntity ht = response.getEntity();
                         BufferedHttpEntity buf = new BufferedHttpEntity(ht);
                         String responseContent = EntityUtils.toString(buf, StandardCharsets.UTF_8);
-
-                        JSONObject jsonObject = new JSONObject(responseContent);
-                        if (!jsonObject.getBoolean(ApiConstants.RESPONSE_FIELD_OK)) {
-                            callback.onError(method, jsonObject);
+                        try {
+                            callback.onResult(method, method.deserializeResponse(responseContent));
+                        } catch (TelegramApiRequestException e) {
+                            callback.onError(method, e);
                         }
-                        callback.onResult(method, jsonObject);
                     }
                 } catch (IOException | TelegramApiValidationException e) {
                     callback.onException(method, e);
diff --git a/telegrambots/src/main/java/org/telegram/telegrambots/bots/TelegramWebhookBot.java b/telegrambots/src/main/java/org/telegram/telegrambots/bots/TelegramWebhookBot.java
index 2bec6770..827855d6 100644
--- a/telegrambots/src/main/java/org/telegram/telegrambots/bots/TelegramWebhookBot.java
+++ b/telegrambots/src/main/java/org/telegram/telegrambots/bots/TelegramWebhookBot.java
@@ -29,7 +29,7 @@ import java.nio.charset.StandardCharsets;
  * <a href="https://core.telegram.org/bots/api#setwebhook">webhook</a>
  * @date 14 of January of 2016
  */
-public abstract class TelegramWebhookBot extends AbsSender implements WebhookBot {
+public abstract class TelegramWebhookBot extends DefaultAbsSender implements WebhookBot {
     private final DefaultBotOptions botOptions;
 
     public TelegramWebhookBot() {
@@ -37,7 +37,7 @@ public abstract class TelegramWebhookBot extends AbsSender implements WebhookBot
     }
 
     public TelegramWebhookBot(DefaultBotOptions options) {
-        super();
+        super(options);
         this.botOptions = options;
     }