diff --git a/config/mp/webpack.config.js b/config/mp/webpack.config.js
index 1b48147..457636d 100644
--- a/config/mp/webpack.config.js
+++ b/config/mp/webpack.config.js
@@ -50,7 +50,7 @@ module.exports = function (webpackEnv) {
     const isEnvProduction = webpackEnv === 'production';
     // 生产环境和staging都是none
     // 开发环境 使用eval-source-map
-    const sourceMap = isEnvDevelopment ? 'inline-source-map' : false;
+    const sourceMap = isEnvDevelopment ? 'cheap-module-source-map' : false;
 
     const oakFileLoader = (ext = '[ext]') => {
         return {