diff --git a/packages/react-devtools-extensions/webpack.backend.js b/packages/react-devtools-extensions/webpack.backend.js
index 80198868f1876..29d183923cd8e 100644
--- a/packages/react-devtools-extensions/webpack.backend.js
+++ b/packages/react-devtools-extensions/webpack.backend.js
@@ -36,7 +36,7 @@ const featureFlagTarget = process.env.FEATURE_FLAG_TARGET || 'extension-oss';
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-source-map' : false,
   entry: {
     backend: './src/backend.js',
   },
diff --git a/packages/react-devtools-extensions/webpack.config.js b/packages/react-devtools-extensions/webpack.config.js
index ffbf153a8db4a..fe5543c04b524 100644
--- a/packages/react-devtools-extensions/webpack.config.js
+++ b/packages/react-devtools-extensions/webpack.config.js
@@ -48,7 +48,7 @@ const babelOptions = {
 
 module.exports = {
   mode: __DEV__ ? 'development' : 'production',
-  devtool: __DEV__ ? 'cheap-module-eval-source-map' : false,
+  devtool: __DEV__ ? 'cheap-module-source-map' : false,
   entry: {
     background: './src/background.js',
     main: './src/main.js',