diff --git a/README.md b/README.md
index 852de85..0fd1617 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@
 >~~简洁、优雅且好用~~  
 >每日一问，今日进度如何
 
+![logo](frontend/src/assets/logo.png)
+
 ## 佛系·上位机
 
 君问何项最佛系，当属网页上位机。  
diff --git a/frontend/public/favicon.ico b/frontend/public/favicon.ico
index df36fcf..e9e1030 100644
Binary files a/frontend/public/favicon.ico and b/frontend/public/favicon.ico differ
diff --git a/frontend/src/assets/logo.jpg b/frontend/src/assets/logo.jpg
deleted file mode 100644
index b96be61..0000000
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diff --git a/frontend/src/assets/logo.png b/frontend/src/assets/logo.png
new file mode 100644
index 0000000..2a08fe0
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diff --git a/frontend/src/components/AboutDialog.vue b/frontend/src/components/AboutDialog.vue
index 1e2aca4..0251244 100644
--- a/frontend/src/components/AboutDialog.vue
+++ b/frontend/src/components/AboutDialog.vue
@@ -2,8 +2,8 @@
   <v-dialog v-model="dialog" max-width="400">
     <v-card>
       <v-list-item>
-        <v-list-item-avatar>
-          <img src="@/assets/logo.jpg" alt="Logo" />
+        <v-list-item-avatar tile size="125">
+          <img src="@/assets/logo.png" alt="Logo" />
         </v-list-item-avatar>
         <v-list-item-content>
           <v-list-item-title>华工机器人实验室巨献</v-list-item-title>