diff --git a/lib/v2/eleduck/posts.js b/lib/v2/eleduck/posts.js
index c0f1358d4..58a0962f2 100644
--- a/lib/v2/eleduck/posts.js
+++ b/lib/v2/eleduck/posts.js
@@ -17,7 +17,7 @@ const getCateName = async (ctx, cid = 0) => {
 module.exports = async (ctx) => {
     const cid = ctx.params.id || 0;
 
-    const response = await got(`https://svc.eleduck.com/api/v1/posts?category=${cid}`);
+    const response = await got(`https://svc.eleduck.com/api/v1/posts?category=${cid}&sort=-published_at&page=1`);
 
     const { posts } = response.data;
     if (posts === undefined) {
diff --git a/lib/v2/eleduck/radar.js b/lib/v2/eleduck/radar.js
index 9b011137b..a6b594c72 100644
--- a/lib/v2/eleduck/radar.js
+++ b/lib/v2/eleduck/radar.js
@@ -12,12 +12,12 @@ module.exports = {
                 title: '分类文章',
                 docs: 'https://docs.rsshub.app/bbs.html#dian-ya-she-qu-fen-lei-wen-zhang',
                 source: '/categories/:cid',
-                target: (params) => `/eleduck/posts${params.cid}`,
+                target: (params) => `/eleduck/posts/${params.cid}`,
             },
             {
                 title: '全部文章',
                 docs: 'https://docs.rsshub.app/bbs.html#dian-ya-she-qu-fen-lei-wen-zhang',
-                source: '*',
+                source: ['/', '*'],
                 target: () => '/eleduck/posts',
             },
         ],
diff --git a/lib/v2/learnblockchain/radar.js b/lib/v2/learnblockchain/radar.js
index aa3a90197..9b3df9e02 100644
--- a/lib/v2/learnblockchain/radar.js
+++ b/lib/v2/learnblockchain/radar.js
@@ -6,7 +6,7 @@ module.exports = {
                 title: '分类文章',
                 docs: 'https://docs.rsshub.app/programming.html#deng-lian-she-qu-wen-zhang',
                 source: '/categories/:cid/:sort?',
-                target: (params) => `/learnblockchain/posts/${params.cid}/${params.sort}`,
+                target: (params) => `/learnblockchain/posts/${params.cid || 'all'}/${params.sort || 'featured'}`,
             },
             {
                 title: '全部文章',