diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..e4a4fff
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+registry = "https://registry.npmjs.org"
\ No newline at end of file
diff --git a/bun.lockb b/bun.lockb
index 5d1a07d..e3f99af 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/package.json b/package.json
index a8f9856..5042b68 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-update-cli",
-  "version": "1.32.3",
+  "version": "1.33.0",
   "description": "Command tools for javaScript updater with `pushy` service for react native apps.",
   "main": "index.js",
   "bin": {
diff --git a/src/bundle.js b/src/bundle.js
index b8c60e1..1d9e12c 100644
--- a/src/bundle.js
+++ b/src/bundle.js
@@ -226,6 +226,10 @@ async function compileHermesByteCode(
     '-O',
   ];
   if (sourcemapOutput) {
+    fs.copyFileSync(
+      sourcemapOutput,
+      path.join(outputFolder, bundleName + '.txt.map'),
+    );
     args.push('-output-source-map');
   }
   console.log(
@@ -234,6 +238,28 @@ async function compileHermesByteCode(
   spawnSync(hermesCommand, args, {
     stdio: 'ignore',
   });
+  if (sourcemapOutput) {
+    const composerPath =
+      'node_modules/react-native/scripts/compose-source-maps.js';
+    if (!fs.existsSync(composerPath)) {
+      return;
+    }
+    console.log(`Composing source map`);
+    spawnSync(
+      'node',
+      [
+        composerPath,
+        path.join(outputFolder, bundleName + '.txt.map'),
+        path.join(outputFolder, bundleName + '.map'),
+        '-o',
+        sourcemapOutput,
+      ],
+      {
+        stdio: 'ignore',
+      },
+    );
+  }
+  fs.removeSync(path.join(outputFolder, bundleName + '.txt.map'));
 }
 
 async function pack(dir, output) {