diff --git a/src/shims/shiki.ts b/src/shims/shiki.ts
deleted file mode 100644
index c342f6dac..000000000
--- a/src/shims/shiki.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-export const bundledThemesInfo: never[] = []
-export const bundledLanguagesInfo: never[] = []
-export async function createHighlighter() {
-  return {
-    getLoadedLanguages: () => [] as string[],
-    getLoadedThemes: () => [] as string[],
-    codeToTokens: () => ({ tokens: [], themeName: '', fg: '', bg: '' }),
-    loadLanguage: async () => {},
-    loadTheme: async () => {},
-    dispose: () => {}
-  }
-}
diff --git a/vite.config.ts b/vite.config.ts
index 002397a42..2c05ac26e 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -18,9 +18,8 @@ export default defineConfig(async () => ({
   resolve: {
     alias: {
       '@': resolve(__dirname, 'src'),
-      // vue-stream-markdown eagerly loads these optional peer deps on mount.
+      // vue-stream-markdown eagerly loads mermaid/beautiful-mermaid as optional peer deps.
       // Alias to empty shims to avoid runtime errors and reduce bundle size.
-      shiki: resolve(__dirname, 'src/shims/shiki.ts'),
       mermaid: resolve(__dirname, 'src/shims/mermaid.ts'),
       'beautiful-mermaid': resolve(__dirname, 'src/shims/mermaid.ts')
     }