diff --git a/2019/12/webpack.md b/2019/12/webpack.md
index a86ed8c..876abf0 100644
--- a/2019/12/webpack.md
+++ b/2019/12/webpack.md
@@ -88,3 +88,6 @@ module.exports = {
 
 3.运行项目
 在当前目录打开终端，输入 yarn run build 
+
+
+### webpack热更新