diff --git a/docs/public/sitemap.xml b/docs/public/sitemap.xml
index 7477181..b20cb53 100644
--- a/docs/public/sitemap.xml
+++ b/docs/public/sitemap.xml
@@ -947,7 +947,7 @@
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-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -961,7 +961,7 @@
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-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -975,7 +975,7 @@
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-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -989,7 +989,7 @@
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-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -1003,7 +1003,7 @@
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     <loc>https://datawhalechina.github.io/easy-vibe/zh-cn/stage-2/assignments/movie-recommendation-springboot/</loc>
-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -1017,7 +1017,7 @@
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-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -1031,7 +1031,7 @@
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-    <lastmod>2026-03-31T12:29:51+08:00</lastmod>
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@@ -1045,7 +1045,7 @@
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     <xhtml:link rel="alternate" hreflang="zh-CN" href="https://datawhalechina.github.io/easy-vibe/zh-cn/stage-2/assignments/travel-planning-agent-platform/"/>