diff --git a/public/demo/game-of-life/3d-life/index.html b/public/demo/game-of-life/3d-life/index.html
index 1fca3d2..7acae8f 100644
--- a/public/demo/game-of-life/3d-life/index.html
+++ b/public/demo/game-of-life/3d-life/index.html
@@ -29,6 +29,14 @@ <h2>关于这个实验</h2>
       </p>
     </section>
   </main>
+  <script type="importmap">
+    {
+      "imports": {
+        "three": "https://unpkg.com/three@0.159.0/build/three.module.js",
+        "three/addons/": "https://unpkg.com/three@0.159.0/examples/jsm/"
+      }
+    }
+  </script>
   <script type="module" src="life3d.js"></script>
 </body>
 </html>
diff --git a/public/demo/game-of-life/3d-life/life3d.js b/public/demo/game-of-life/3d-life/life3d.js
index dd1d8f7..bbb4f25 100644
--- a/public/demo/game-of-life/3d-life/life3d.js
+++ b/public/demo/game-of-life/3d-life/life3d.js
@@ -1,5 +1,5 @@
-import * as THREE from 'https://cdn.jsdelivr.net/npm/three@0.159/build/three.module.js';
-import { OrbitControls } from 'https://cdn.jsdelivr.net/npm/three@0.159/examples/jsm/controls/OrbitControls.js';
+import * as THREE from 'three';
+import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
 
 const canvas = document.getElementById('life-3d');
 const renderer = new THREE.WebGLRenderer({ canvas, antialias: true, alpha: true });