diff --git a/README.md b/README.md
index 1e15b5e..61e6cd3 100644
--- a/README.md
+++ b/README.md
@@ -44,4 +44,4 @@
 
 > [giscafer.com](http://giscafer.com)  · 
 > GitHub [@giscafer](https://github.com/giscafer)  · 
-> Weibo [@Nicky Lao](https://weibo.com/laohoubin)
+> Twitter [@Nicky Lao](https://twitter.com/nicky_lao)
diff --git a/components/page.tsx b/components/page.tsx
index c136209..e5025c9 100644
--- a/components/page.tsx
+++ b/components/page.tsx
@@ -14,10 +14,10 @@ const footerLinks = [
   { name: '旅游地图', url: 'http://map.giscafer.com', target: '_blank' },
 
   { name: 'Blog', url: '/blog' },
-  { name: '语雀', url: 'https://www.yuque.com/giscafer', target: '_blank' },
+  { name: 'Twitter', url: 'https://twitter.com/nicky_lao', target: '_blank' },
   { name: '知乎', url: 'https://www.zhihu.com/people/giscafer', target: '_blank' },
   { name: 'About', url: '/about' },
-  { name: '微博', url: 'https://weibo.com/laohoubin', target: '_blank' },
+  { name: '公众号', url: 'https://giscafer.com/qrcode_for_giscafer.jpg', target: '_blank' },
   { name: 'RSS', url: '/feed.xml', target: '_blank' },
 ]
 
diff --git a/components/postlist.tsx b/components/postlist.tsx
index 7eee046..0fcdf4b 100644
--- a/components/postlist.tsx
+++ b/components/postlist.tsx
@@ -47,7 +47,7 @@ const PostList = ({ posts, hideImage = false }: PostListProps): JSX.Element => (
           {summary !== '查看全文>>' && <p className={styles.summary}>{summary}</p>}
 
           <p className={styles.meta}>
-            发布于 <time dateTime={publishedAt}>{formatDate(publishedAt)}</time> &middot; 预估阅读 {Math.ceil(readTime.minutes * 3)} 分钟
+            发布于 <time dateTime={publishedAt}>{formatDate(publishedAt)}</time> &middot; 预估阅读 {Math.ceil(readTime.minutes * 5)} 分钟
           </p>
         </li>
       )
diff --git a/pages/blog/[slug].tsx b/pages/blog/[slug].tsx
index 870b750..550cdd0 100644
--- a/pages/blog/[slug].tsx
+++ b/pages/blog/[slug].tsx
@@ -139,7 +139,7 @@ const Post = ({ post, related, githubUser, githubProject }: PostProps): JSX.Elem
         <p className={styles.meta}>
           发布于 <time dateTime={post.publishedAt}>{formattedPublishDate}</time>
           {post.updatedAt ? ` (Updated ${formattedUpdatedDate})` : ''} <span>&middot;</span> 预估阅读{' '}
-          {Math.ceil(post.readingTime?.minutes * 1.5)} 分钟
+          {Math.ceil(post.readingTime?.minutes * 3)} 分钟
           <HitCounter slug={post.slug} />
         </p>
       </PageHeader>