diff --git a/package.json b/package.json
index 8bb87e1..29e2096 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "Miru",
-  "version": "4.0.2",
+  "version": "4.0.3",
   "author": "ThaUnknown_ <ThaUnknown@users.noreply.github.com>",
   "description": "Stream anime torrents, real-time with no waiting for downloads.",
   "main": "build/main.js",
diff --git a/webpack.config.cjs b/webpack.config.cjs
index 0004b26..e990542 100644
--- a/webpack.config.cjs
+++ b/webpack.config.cjs
@@ -8,6 +8,7 @@ const isDev = mode === 'development'
 
 module.exports = [
   {
+    devtool: isDev ? 'eval' : 'source-map',
     entry: join(__dirname, 'src', 'background', 'background.js'),
     output: {
       path: join(__dirname, 'build'),
@@ -38,6 +39,7 @@ module.exports = [
     }
   },
   {
+    devtool: isDev ? 'eval' : 'source-map',
     entry: join(__dirname, 'src', 'renderer', 'src', 'main.js'),
     output: {
       path: join(__dirname, 'build'),
@@ -120,6 +122,7 @@ module.exports = [
     target: 'web'
   },
   {
+    devtool: isDev ? 'eval' : 'source-map',
     entry: join(__dirname, 'src', 'preload', 'preload.js'),
     output: {
       path: join(__dirname, 'build'),
@@ -132,6 +135,7 @@ module.exports = [
     target: 'electron20.0-preload'
   },
   {
+    devtool: isDev ? 'eval' : 'source-map',
     entry: join(__dirname, 'src', 'main', 'main.js'),
     output: {
       path: join(__dirname, 'build'),