diff --git a/lib/routes/mediadigest/category.js b/lib/routes/mediadigest/category.js
index d52214530..b42a27f64 100644
--- a/lib/routes/mediadigest/category.js
+++ b/lib/routes/mediadigest/category.js
@@ -1,7 +1,7 @@
 const got = require('@/utils/got');
 const cheerio = require('cheerio');
 
-function getArticle(line) {
+function getArticle(ctx, line, tasks) {
     const article = ctx.cache.tryGet(line, async () => {
         const a_r = await got.get(`https://app3.rthk.hk/mediadigest/${line}`);
         const $ = cheerio.load(a_r.data);
@@ -11,7 +11,7 @@ function getArticle(line) {
         const author_list = $('div.story-author');
         const authors = author_list.map((_index, author) => $(author).text());
         const author = authors.map((_index, author) => `<b>${author}</b><br>`);
-        const s_author = author.toArray().join("");
+        const s_author = author.toArray().join('');
         const author_block = `<blockquote><p>${s_author}</p></blockquote>`;
         // date
         const date = $('div.story-calendar').text();
@@ -37,27 +37,37 @@ module.exports = async (ctx) => {
         const $ = cheerio.load(response.data);
         const list = $('div.category-line');
 
-        list.map((_index, line) => $(line).find('a').first().attr('href'))
-            .each((_index, line) => {
-                getArticle(line);
-            });
+        list.map((_index, line) => $(line).find('a').first().attr('href')).each((_index, line) => {
+            getArticle(ctx, line, tasks);
+        });
     } else {
-        let cids = [1, 2]; for (let i = 4; i < 28; ++i) {cids.push(i);};
-        let urls = cids.map((cid) => `https://app3.rthk.hk/mediadigest/category.php?cid=${cid}`);
+        const cids = [1, 2];
+        for (let i = 4; i < 28; ++i) {
+            cids.push(i);
+        }
+        const urls = cids.map((cid) => `https://app3.rthk.hk/mediadigest/category.php?cid=${cid}`);
         const list_allt = await Promise.all(
             urls.map(async (url) => {
                 const response = await got.get(url);
                 const $ = cheerio.load(response.data);
-                const list =  $('div.category-line').map((_index, line) => $(line).find('a').first().attr('href'));
+                const list = $('div.category-line').map((_index, line) => $(line).find('a').first().attr('href'));
                 return Promise.resolve(list.toArray());
             })
         );
         const list_all = [...new Set(list_allt.flat())];
 
-        list_all.forEach((line) => {
-            getArticle(line);
+        const list_recent_20 = list_all
+            .sort((a, b) => {
+                const aid_a = a.match(/aid=(\d+)/)[1];
+                const aid_b = b.match(/aid=(\d+)/)[1];
+                // reverse
+                return aid_b - aid_a;
+            })
+            .slice(0, 20);
+        list_recent_20.forEach((line) => {
+            getArticle(ctx, line, tasks);
         });
-    };
+    }
 
     const rss = await Promise.all(tasks);