diff --git a/docs/.vitepress/en.mts b/docs/.vitepress/en.mts
index 41b5ec84..274073af 100644
--- a/docs/.vitepress/en.mts
+++ b/docs/.vitepress/en.mts
@@ -49,6 +49,7 @@ function sidebar(): DefaultTheme.Sidebar {
           text: 'Array Utilities',
           items: [
             { text: 'chunk', link: '/reference/array/chunk' },
+            { text: 'concat (compat)', link: '/reference/array/concat' },
             { text: 'countBy', link: '/reference/array/countBy' },
             { text: 'compact', link: '/reference/array/compact' },
             { text: 'difference', link: '/reference/array/difference' },
diff --git a/docs/.vitepress/ko.mts b/docs/.vitepress/ko.mts
index 52d9a625..bf8409fd 100644
--- a/docs/.vitepress/ko.mts
+++ b/docs/.vitepress/ko.mts
@@ -48,6 +48,7 @@ function sidebar(): DefaultTheme.Sidebar {
           text: '배열',
           items: [
             { text: 'chunk', link: '/ko/reference/array/chunk' },
+            { text: 'concat (호환성)', link: '/ko/reference/array/concat' },
             { text: 'countBy', link: '/ko/reference/array/countBy' },
             { text: 'compact', link: '/ko/reference/array/compact' },
             { text: 'difference', link: '/ko/reference/array/difference' },
diff --git a/docs/.vitepress/zh_hans.mts b/docs/.vitepress/zh_hans.mts
index ff7716d9..df0cb07d 100644
--- a/docs/.vitepress/zh_hans.mts
+++ b/docs/.vitepress/zh_hans.mts
@@ -48,6 +48,7 @@ function sidebar(): DefaultTheme.Sidebar {
           text: '数组工具',
           items: [
             { text: 'chunk', link: '/zh_hans/reference/array/chunk' },
+            { text: 'concat (兼容性)', link: '/zh_hans/reference/array/concat' },
             { text: 'countBy', link: '/zh_hans/reference/array/countBy' },
             { text: 'compact', link: '/zh_hans/reference/array/compact' },
             { text: 'difference', link: '/zh_hans/reference/array/difference' },