diff --git a/learn/templates/home.html b/learn/templates/home.html
index 1bfe530..7307648 100644
--- a/learn/templates/home.html
+++ b/learn/templates/home.html
@@ -28,7 +28,7 @@
     <option value="1">火焰与烟雾</option>
     <option value="2">一般物体80类</option>
     <option value="3">烟火与塔吊</option>
-    <option value="4">外破（暂未提供）</option>
+    <option value="4">外破（ljp4500张）四类</option>
 </select>
 </h1>
   </p>