diff --git a/plugins/plugin-shikiji/src/node/types.ts b/plugins/plugin-shikiji/src/node/types.ts
index 4950d5c2..3503f1b0 100644
--- a/plugins/plugin-shikiji/src/node/types.ts
+++ b/plugins/plugin-shikiji/src/node/types.ts
@@ -1,12 +1,20 @@
 import type {
   BuiltinTheme,
+  BundledLanguage,
   Highlighter,
   LanguageInput,
   ShikiTransformer,
+  SpecialLanguage,
+  StringLiteralUnion,
   ThemeRegistration,
 } from 'shiki'
 import type { LocaleConfig } from 'vuepress/shared'
 
+export type ShikiLang =
+  | LanguageInput
+  | StringLiteralUnion<BundledLanguage>
+  | SpecialLanguage
+
 export type ThemeOptions =
   | ThemeRegistration
   | BuiltinTheme
@@ -38,7 +46,7 @@ export interface HighlighterOptions {
    * Languages for syntax highlighting.
    * @see https://shiki.style/languages
    */
-  languages?: LanguageInput[]
+  languages?: ShikiLang[]
   /**
    * Custom language aliases.
    *