diff --git a/themes/Medium/components/Catalog.js b/themes/Medium/components/Catalog.js
index b1dc71ba..eb715e66 100644
--- a/themes/Medium/components/Catalog.js
+++ b/themes/Medium/components/Catalog.js
@@ -78,7 +78,7 @@ const Catalog = ({ toc }) => {
         )
       })}
     </nav>
-    <JumpToTopButton className='text-gray-400 hover:bg-gray-100 py-1 duration-200'/>
+    <JumpToTopButton className='text-gray-400 hover:text-green-500 hover:bg-gray-100 py-1 duration-200'/>
   </div>
 }
 
diff --git a/themes/Medium/components/CategoryGroup.js b/themes/Medium/components/CategoryGroup.js
index cf6a7d38..797e3afa 100644
--- a/themes/Medium/components/CategoryGroup.js
+++ b/themes/Medium/components/CategoryGroup.js
@@ -8,10 +8,9 @@ const CategoryGroup = ({ currentCategory, categories }) => {
   return <div id='category-list' className='pt-4'>
     <div className='mb-2'><i className='mr-2 fas fa-th' />分类</div>
     <div className='flex flex-wrap'>
-      {Object.keys(categories).map(category => {
-        const selected = currentCategory === category
-        const categoryCount = +categories[category]
-        return <CategoryItem key={category} selected={selected} category={category} categoryCount={categoryCount}/>
+      {categories.map(category => {
+        const selected = currentCategory === category.name
+        return <CategoryItem key={category.name} selected={selected} category={category.name} categoryCount={category.count}/>
       })}
     </div>
   </div>
diff --git a/themes/Medium/components/CategoryItem.js b/themes/Medium/components/CategoryItem.js
index 86aef898..bb8a1841 100644
--- a/themes/Medium/components/CategoryItem.js
+++ b/themes/Medium/components/CategoryItem.js
@@ -6,7 +6,7 @@ export default function CategoryItem ({ selected, category, categoryCount }) {
       ? 'hover:text-white dark:hover:text-white bg-green-600 text-white '
       : 'dark:text-green-400 text-gray-500 hover:text-white dark:hover:text-white hover:bg-green-600') +
     ' flex text-sm items-center duration-300 cursor-pointer py-1 font-light px-2 whitespace-nowrap'}>
-      <div><i className={`mr-2 fas ${selected ? 'fa-folder-open' : 'fa-folder'}`} />{category} {categoryCount && (categoryCount)}
+      <div><i className={`mr-2 fas ${selected ? 'fa-folder-open' : 'fa-folder'}`} />{category} {categoryCount && `(${categoryCount})`}
       </div>
     </a>
   </Link>
diff --git a/themes/index.js b/themes/index.js
index 5acc65dd..d17405e5 100644
--- a/themes/index.js
+++ b/themes/index.js
@@ -5,5 +5,5 @@
 // export * from './Empty' //  空主题
 // export * from './NEXT'
 // export * from './Fukasawa'
-export * from './Hexo'
-// export * from './Medium'
+// export * from './Hexo'
+export * from './Medium'