diff --git a/.vitepress/theme/components/Footer.vue b/.vitepress/theme/components/Footer.vue
index f750b98..e7b4d4c 100644
--- a/.vitepress/theme/components/Footer.vue
+++ b/.vitepress/theme/components/Footer.vue
@@ -28,7 +28,7 @@ const siteVersion = theme.value.siteVersion;
       </div>
       <div class="beian-info">
         <div class="beian-gongan">
-          <img src="/assets/images/beian.png" loading="eager" />
+          <img src="/assets/images/beian.webp" loading="eager" />
           <a href="https://beian.mps.gov.cn/#/query/webSearch?code=23020002230215" target="_blank"
             >黑公网安备23020002230215</a
           >
diff --git a/.vitepress/theme/layouts/Default.vue b/.vitepress/theme/layouts/Default.vue
index ee26fcb..50716bf 100644
--- a/.vitepress/theme/layouts/Default.vue
+++ b/.vitepress/theme/layouts/Default.vue
@@ -158,7 +158,7 @@ onMounted(() => {
                 <h3>
                   {{ randomGreeting }}
                 </h3>
-                <img src="/assets/images/avatar_transparent.png" alt="" />
+                <img src="/assets/images/avatar_transparent.webp" alt="" />
                 <span></span>
               </div>
             </ClientOnly>
diff --git a/public/assets/images/avatar_transparent.png b/public/assets/images/avatar_transparent.png
deleted file mode 100644
index de1c4e6..0000000
Binary files a/public/assets/images/avatar_transparent.png and /dev/null differ
diff --git a/public/assets/images/avatar_transparent.webp b/public/assets/images/avatar_transparent.webp
new file mode 100644
index 0000000..f10064b
Binary files /dev/null and b/public/assets/images/avatar_transparent.webp differ
diff --git a/public/assets/images/beian.png b/public/assets/images/beian.png
deleted file mode 100644
index 2a13ba2..0000000
Binary files a/public/assets/images/beian.png and /dev/null differ
diff --git a/public/assets/images/beian.webp b/public/assets/images/beian.webp
new file mode 100644
index 0000000..36fbf70
Binary files /dev/null and b/public/assets/images/beian.webp differ