diff --git a/index.html b/index.html
index f7a666b..1c37922 100644
--- a/index.html
+++ b/index.html
@@ -61,7 +61,7 @@
         <div class="tools-grid">
             <div class="tool-card">
                 <a href="https://www.zust.edu.cn" class="tool-card-link" target="_blank">
-                    <img class="tool-logo" src="logo/zust.jpg" alt="logo">
+                    <img class="tool-logo" src="logo/zust.png" alt="logo">
                     <div class="tool-name">浙江科技大学</div>
                     <div class="card-description">崇德 尚用 求真 创新</div>
                 </a>
@@ -70,7 +70,7 @@
             
             <div class="tool-card">
                 <a href="https://github.com/" class="tool-card-link" target="_blank">
-                    <img class="tool-logo" src="logo/zust.jpg" alt="logo">
+                    <img class="tool-logo" src="logo/github.png" alt="logo">
                     <div class="tool-name">GitHub</div>
                     <div class="card-description">Description of the tool.</div>
                 </a>
@@ -79,7 +79,7 @@
 
             <div class="tool-card">
                 <a href="https://www.1lou.me" class="tool-card-link" target="_blank">
-                    <img class="tool-logo" src="logo/zust.jpg" alt="logo">
+                    <img class="tool-logo" src="logo/bthome.png" alt="logo">
                     <div class="tool-name">BT之家—1LOU站</div>
                     <div class="card-description">Description of the tool.</div>
                 </a>
@@ -106,7 +106,7 @@
 
             <div class="tool-card">
                 <a href="https://aee.zust.edu.cn" class="tool-card-link" target="_blank">
-                    <img class="tool-logo" src="logo/zust.jpg" alt="logo">
+                    <img class="tool-logo" src="logo/zust_aee.png" alt="logo">
                     <div class="tool-name">自动化与电气工程学院</div>
                     <div class="card-description">浙江科技大学|自动化与电气工程学院.</div>
                 </a>
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diff --git a/logo/seedhub.png b/logo/seedhub.png
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diff --git a/logo/zust.png b/logo/zust.png
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diff --git a/logo/zust_aee.png b/logo/zust_aee.png
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