diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index a465760..4c04528 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -87,7 +87,8 @@ export default defineConfig({
             if (id.includes('@tanstack')) return 'tanstack';
             if (id.includes('lucide-react')) return 'icons';
             if (id.includes('react-markdown') || id.includes('remark-gfm')) return 'markdown';
-            if (id.includes('date-fns') || id.includes('clsx') || id.includes('class-variance-authority') || id.includes('tailwind-merge') || id.includes('zustand') || id.includes('immer')) return 'utils';
+            if (id.includes('date-fns') || id.includes('clsx') || id.includes('class-variance-authority') || id.includes('tailwind-merge')) return 'utils';
+            if (id.includes('zustand') || id.includes('immer')) return 'react-vendor';
             if (id.includes('i18next') || id.includes('react-i18next')) return 'i18n';
           }
           // Split @/components/ui into its own chunk