diff --git a/CHANGELOG.MD b/CHANGELOG.MD
index 98f2b4bd0f7..4db799d2313 100644
--- a/CHANGELOG.MD
+++ b/CHANGELOG.MD
@@ -1,4 +1,11 @@
 # 更新日志
+### 4.5.7 | 2022.03.05
+- 新增歌手粉丝数量接口[#1485](https://github.com/Binaryify/NeteaseCloudMusicApi/issues/1485)
+
+- 新增音乐人任务(新)接口
+
+- 更新 `appver`
+
 ### 4.5.6 | 2022.02.12
 - 歌单封面上传接口缺失参数时返回状态码修正
 
diff --git a/README.MD b/README.MD
index 51bf5faed18..7b0d9d191c6 100644
--- a/README.MD
+++ b/README.MD
@@ -43,6 +43,7 @@ $ npm install
 ```
 
 ## 运行
+调用前务必阅读文档的`调用前须知`
 
 ```shell
 $ node app.js
@@ -357,7 +358,8 @@ banner({ type:0 }).then(res=>{
 235. 最近播放-播客
 236. 签到进度
 237. 重复昵称检测
-
+238. 歌手粉丝数量
+239. 音乐人任务(新)
 ## 更新日志
 
 [changelog](https://github.com/Binaryify/NeteaseCloudMusicApi/blob/master/CHANGELOG.MD)
diff --git a/docs/README.md b/docs/README.md
index 841ca9edfdb..e64fbd7cb89 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -253,6 +253,8 @@
 235. 最近播放-播客
 236. 签到进度
 237. 重复昵称检测
+238. 歌手粉丝数量
+239. 音乐人任务(新)
 
 
 ## 安装
@@ -3574,6 +3576,17 @@ type='1009' 获取其 id, 如`/search?keywords= 代码时间 &type=1009`
 ### 歌手粉丝
 
 说明 : 调用此接口 , 传入歌手 id, 可获取歌手粉丝
+**必选参数 :** `id` : 歌手 id
+
+
+**接口地址 :** `/artist/fans`
+
+**调用例子 :** `/artist/fans?id=2116&limit=10&offset=0`
+
+### 歌手粉丝数量
+
+说明 : 调用此接口 , 传入歌手 id, 可获取歌手粉丝数量
+
 
 **必选参数 :** `id` : 歌手 id
 
@@ -3581,9 +3594,9 @@ type='1009' 获取其 id, 如`/search?keywords= 代码时间 &type=1009`
 
 `offset`: 偏移数量 , 用于分页 , 如 :( 评论页数 -1)\*10, 其中 10 为 limit 的值
 
-**接口地址 :** `/artist/fans`
+**接口地址 :** `/artist/follow/count`
 
-**调用例子 :** `/artist/fans?id=2116&limit=10&offset=0`
+**调用例子 :** `/artist/follow/count?id=2116`
 
 ### 数字专辑详情
 
@@ -3627,12 +3640,20 @@ type='1009' 获取其 id, 如`/search?keywords= 代码时间 &type=1009`
 
 ### 音乐人任务
 
-说明 : 音乐人登录后调用此接口 , 可获取音乐人任务。返回的数据中`status`字段为任务状态，0 表示任务未开始，10 表示任务正在进行中，20 表示任务完成，但未领取云豆，100 表示任务完成，并且已经领取了相应的云豆
+说明 : 音乐人登录后调用此接口 , 可获取音乐人任务。返回的数据中`status`字段为任务状态，0 表示任务未开始，10 表示任务正在进行中，20 表示任务完成，但未领取云豆，100 表示任务完成，并且已经领取了相应的云豆(貌似只能获取到做过的任务了)
 
 **接口地址 :** `/musician/tasks`
 
 **调用例子 :** `/musician/tasks`
 
+### 音乐人任务(新)
+
+说明 : 音乐人登录后调用此接口 , 可获取音乐人任务。返回的数据中`status`字段为任务状态，0 表示任务未开始，10 表示任务正在进行中，20 表示任务完成，但未领取云豆，100 表示任务完成，并且已经领取了相应的云豆
+
+**接口地址 :** `/musician/tasks/new`
+
+**调用例子 :** `/musician/tasks/new`
+
 ### 账号云豆数
 
 说明 : 音乐人登录后调用此接口 , 可获取账号云豆数
diff --git a/interface.d.ts b/interface.d.ts
index 257b92656ca..ce8b294831a 100644
--- a/interface.d.ts
+++ b/interface.d.ts
@@ -1607,3 +1607,5 @@ export function nickname_check(
     nickname: string
   } & RequestBaseConfig,
 ): Promise<Response>
+
+export function musician_tasks_new(params: RequestBaseConfig): Promise<Response>
diff --git a/module/artist_follow_count.js b/module/artist_follow_count.js
new file mode 100644
index 00000000000..93afda21ba3
--- /dev/null
+++ b/module/artist_follow_count.js
@@ -0,0 +1,18 @@
+// 歌手粉丝数量
+
+module.exports = (query, request) => {
+  const data = {
+    id: query.id,
+  }
+  return request(
+    'POST',
+    `https://music.163.com/weapi/artist/follow/count/get`,
+    data,
+    {
+      crypto: 'weapi',
+      cookie: query.cookie,
+      proxy: query.proxy,
+      realIP: query.realIP,
+    },
+  )
+}
diff --git a/module/artist_new_mv.js b/module/artist_new_mv.js
index 6c65343ef08..d385e358f05 100644
--- a/module/artist_new_mv.js
+++ b/module/artist_new_mv.js
@@ -1,6 +1,6 @@
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     limit: query.limit || 20,
     startTimestamp: query.before || Date.now(),
diff --git a/module/artist_new_song.js b/module/artist_new_song.js
index a367f8c46ce..41fbde50de4 100644
--- a/module/artist_new_song.js
+++ b/module/artist_new_song.js
@@ -1,6 +1,6 @@
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     limit: query.limit || 20,
     startTimestamp: query.before || Date.now(),
diff --git a/module/cloud.js b/module/cloud.js
index b7cdac33158..49e91c613a6 100644
--- a/module/cloud.js
+++ b/module/cloud.js
@@ -3,7 +3,7 @@ const uploadPlugin = require('../plugins/songUpload')
 const md5 = require('md5')
 module.exports = async (query, request) => {
   query.cookie.os = 'pc'
-  query.cookie.appver = '2.7.1.198277'
+  query.cookie.appver = '2.9.7'
   const bitrate = 999000
   if (!query.songFile) {
     return Promise.reject({
diff --git a/module/cloud_match.js b/module/cloud_match.js
index d28d88b8542..98fc8aa8302 100644
--- a/module/cloud_match.js
+++ b/module/cloud_match.js
@@ -1,6 +1,6 @@
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     userId: query.uid,
     songId: query.sid,
diff --git a/module/comment_hug_list.js b/module/comment_hug_list.js
index 394a2df4f00..eaf535fe284 100644
--- a/module/comment_hug_list.js
+++ b/module/comment_hug_list.js
@@ -1,7 +1,7 @@
 const { resourceTypeMap } = require('../util/config.json')
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   query.type = resourceTypeMap[query.type || 0]
   const threadId = query.type + query.sid
   const data = {
diff --git a/module/homepage_block_page.js b/module/homepage_block_page.js
index af4b0741f85..f214a6d91c2 100644
--- a/module/homepage_block_page.js
+++ b/module/homepage_block_page.js
@@ -3,7 +3,7 @@
 // query.refresh 是否刷新数据
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = { refresh: query.refresh || false, cursor: query.cursor }
   return request(
     'POST',
diff --git a/module/homepage_dragon_ball.js b/module/homepage_dragon_ball.js
index 00231dd516a..e2421bf9b92 100644
--- a/module/homepage_dragon_ball.js
+++ b/module/homepage_dragon_ball.js
@@ -8,7 +8,7 @@ module.exports = (query, request) => {
     query.cookie.MUSIC_A = config.anonymous_token
   const data = {}
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   return request(
     'POST',
     `https://music.163.com/eapi/homepage/dragon/ball/static`,
diff --git a/module/hug_comment.js b/module/hug_comment.js
index ce4452883df..fc88f138a62 100644
--- a/module/hug_comment.js
+++ b/module/hug_comment.js
@@ -1,7 +1,7 @@
 const { resourceTypeMap } = require('../util/config.json')
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   query.type = resourceTypeMap[query.type || 0]
   const threadId = query.type + query.sid
   const data = {
diff --git a/module/like.js b/module/like.js
index bd9059183fc..e13e78505af 100644
--- a/module/like.js
+++ b/module/like.js
@@ -2,7 +2,7 @@
 
 module.exports = (query, request) => {
   query.cookie.os = 'pc'
-  query.cookie.appver = '2.7.1.198277'
+  query.cookie.appver = '2.9.7'
   query.like = query.like == 'false' ? false : true
   const data = {
     alg: 'itembased',
diff --git a/module/musician_tasks_new.js b/module/musician_tasks_new.js
new file mode 100644
index 00000000000..fd4953ea949
--- /dev/null
+++ b/module/musician_tasks_new.js
@@ -0,0 +1,16 @@
+// 获取音乐人任务
+
+module.exports = (query, request) => {
+  const data = {}
+  return request(
+    'POST',
+    `https://music.163.com/api/nmusician/workbench/mission/stage/list `,
+    data,
+    {
+      crypto: 'weapi',
+      cookie: query.cookie,
+      proxy: query.proxy,
+      realIP: query.realIP,
+    },
+  )
+}
diff --git a/module/send_album.js b/module/send_album.js
index 8af56733c35..d6693a5c1f1 100644
--- a/module/send_album.js
+++ b/module/send_album.js
@@ -2,7 +2,7 @@
 
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     id: query.id,
     msg: query.msg || '',
diff --git a/module/send_song.js b/module/send_song.js
index 932cde14d3b..b2ce0a27ac7 100644
--- a/module/send_song.js
+++ b/module/send_song.js
@@ -2,7 +2,7 @@
 
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     id: query.id,
     msg: query.msg || '',
diff --git a/module/user_comment_history.js b/module/user_comment_history.js
index bb982214b84..339be309e0c 100644
--- a/module/user_comment_history.js
+++ b/module/user_comment_history.js
@@ -1,6 +1,6 @@
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     compose_reminder: 'true',
     compose_hot_comment: 'true',
diff --git a/module/user_event.js b/module/user_event.js
index 0c642aedb00..521b0dd0d71 100644
--- a/module/user_event.js
+++ b/module/user_event.js
@@ -2,7 +2,7 @@
 
 module.exports = (query, request) => {
   query.cookie.os = 'ios'
-  query.cookie.appver = '8.1.20'
+  query.cookie.appver = '8.7.01'
   const data = {
     getcounts: true,
     time: query.lasttime || -1,
diff --git a/package.json b/package.json
index 4ca28dc7086..15d0793f916 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "NeteaseCloudMusicApi",
-  "version": "4.5.7",
+  "version": "4.5.8",
   "description": "网易云音乐 NodeJS 版 API",
   "scripts": {
     "start": "node app.js",
diff --git a/util/request.js b/util/request.js
index bcb245a58a7..d449d27d3ff 100644
--- a/util/request.js
+++ b/util/request.js
@@ -85,7 +85,7 @@ const createRequest = (method, url, data, options) => {
       const header = {
         osver: cookie.osver, //系统版本
         deviceId: cookie.deviceId, //encrypt.base64.encode(imei + '\t02:00:00:00:00:00\t5106025eb79a5247\t70ffbaac7')
-        appver: cookie.appver || '8.0.0', // app版本
+        appver: cookie.appver || '8.7.01', // app版本
         versioncode: cookie.versioncode || '140', //版本号
         mobilename: cookie.mobilename, //设备model
         buildver: cookie.buildver || Date.now().toString().substr(0, 10),