diff --git a/README.md b/README.md
index f6173e8b..50eb1804 100644
--- a/README.md
+++ b/README.md
@@ -29,8 +29,8 @@ Aria有以下特点：
 [![Download](https://api.bintray.com/packages/arialyy/maven/AriaApi/images/download.svg)](https://bintray.com/arialyy/maven/AriaApi/_latestVersion)
 [![Download](https://api.bintray.com/packages/arialyy/maven/AriaCompiler/images/download.svg)](https://bintray.com/arialyy/maven/AriaCompiler/_latestVersion)
 ```java
-compile 'com.arialyy.aria:aria-core:3.2.17'
-annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.17'
+compile 'com.arialyy.aria:aria-core:3.2.19'
+annotationProcessor 'com.arialyy.aria:aria-compiler:3.2.19'
 ```
 
 ## 示例
diff --git a/aria/src/main/java/com/arialyy/aria/core/Configuration.java b/aria/src/main/java/com/arialyy/aria/core/Configuration.java
index e65f4218..3aeca30e 100644
--- a/aria/src/main/java/com/arialyy/aria/core/Configuration.java
+++ b/aria/src/main/java/com/arialyy/aria/core/Configuration.java
@@ -18,6 +18,7 @@ package com.arialyy.aria.core;
 import android.text.TextUtils;
 import com.arialyy.aria.core.common.QueueMod;
 import com.arialyy.aria.core.queue.DownloadTaskQueue;
+import com.arialyy.aria.core.queue.UploadTaskQueue;
 import com.arialyy.aria.util.CommonUtil;
 import java.io.File;
 import java.lang.reflect.Field;
@@ -86,14 +87,6 @@ class Configuration {
       return maxTaskNum;
     }
 
-    public BaseConfig setMaxTaskNum(int maxTaskNum) {
-      oldMaxTaskNum = this.maxTaskNum;
-      this.maxTaskNum = maxTaskNum;
-      saveKey("maxTaskNum", maxTaskNum + "");
-      DownloadTaskQueue.getInstance().setMaxTaskNum(maxTaskNum);
-      return this;
-    }
-
     public int getReTryNum() {
       return reTryNum;
     }
@@ -250,6 +243,14 @@ class Configuration {
      */
     double msxSpeed = 0.0;
 
+    public DownloadConfig setMaxTaskNum(int maxTaskNum) {
+      oldMaxTaskNum = this.maxTaskNum;
+      this.maxTaskNum = maxTaskNum;
+      saveKey("maxTaskNum", maxTaskNum + "");
+      DownloadTaskQueue.getInstance().setMaxTaskNum(maxTaskNum);
+      return this;
+    }
+
     public int getIOTimeOut() {
       return iOTimeOut;
     }
@@ -332,6 +333,14 @@ class Configuration {
 
     private static UploadConfig INSTANCE = null;
 
+    public UploadConfig setMaxTaskNum(int maxTaskNum) {
+      oldMaxTaskNum = this.maxTaskNum;
+      this.maxTaskNum = maxTaskNum;
+      saveKey("maxTaskNum", maxTaskNum + "");
+      UploadTaskQueue.getInstance().setMaxTaskNum(maxTaskNum);
+      return this;
+    }
+
     static UploadConfig getInstance() {
       if (INSTANCE == null) {
         synchronized (DownloadConfig.class) {
diff --git a/build.gradle b/build.gradle
index da4f3c6e..2b6a3686 100644
--- a/build.gradle
+++ b/build.gradle
@@ -37,7 +37,7 @@ task clean(type: Delete) {
 ext {
   userOrg = 'arialyy'
   groupId = 'com.arialyy.aria'
-  publishVersion = '3.2.18'
+  publishVersion = '3.2.19'
   repoName='maven'
   desc = 'android 下载框架'
   website = 'https://github.com/AriaLyy/Aria'