diff --git a/pkgs/dart_services/lib/src/common.dart b/pkgs/dart_services/lib/src/common.dart
index d2eda3bcd..df462e30c 100644
--- a/pkgs/dart_services/lib/src/common.dart
+++ b/pkgs/dart_services/lib/src/common.dart
@@ -21,30 +21,17 @@ import 'dart:ui_web' as ui_web;
 
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
 
-import 'generated_plugin_registrant.dart';
+import 'generated_plugin_registrant.dart' as pluginRegistrant;
 import 'main.dart' as entrypoint;
 
 Future<void> main() async {
-  registerPlugins(webPluginRegistrar);
   await ui_web.bootstrapEngine(
     runApp: () {
-      return entrypoint.main();
+      entrypoint.main();
+    },
+    registerPlugins: () {
+      pluginRegistrant.registerPlugins();
     },
   );
 }
 ''';
-
-const kBootstrapFlutterCode_3_16 = r'''
-import 'dart:ui' as ui;
-
-import 'package:flutter_web_plugins/flutter_web_plugins.dart';
-
-import 'generated_plugin_registrant.dart';
-import 'main.dart' as entrypoint;
-
-Future<void> main() async {
-  registerPlugins(webPluginRegistrar);
-  await ui.webOnlyInitializePlatform();
-  entrypoint.main();
-}
-''';
diff --git a/pkgs/dart_services/lib/src/compiling.dart b/pkgs/dart_services/lib/src/compiling.dart
index a2494ba8c..cc5ae130c 100644
--- a/pkgs/dart_services/lib/src/compiling.dart
+++ b/pkgs/dart_services/lib/src/compiling.dart
@@ -121,14 +121,8 @@ class Compiler {
       Directory(path.join(temp.path, 'lib')).createSync(recursive: true);
 
       final bootstrapPath = path.join(temp.path, 'lib', kBootstrapDart);
-      String bootstrapContents;
-      if (usingFlutter) {
-        bootstrapContents = _sdk.usesNewBootstrapEngine
-            ? kBootstrapFlutterCode
-            : kBootstrapFlutterCode_3_16;
-      } else {
-        bootstrapContents = kBootstrapDartCode;
-      }
+      final bootstrapContents =
+          usingFlutter ? kBootstrapFlutterCode : kBootstrapDartCode;
 
       File(bootstrapPath).writeAsStringSync(bootstrapContents);
       File(path.join(temp.path, 'lib', kMainDart)).writeAsStringSync(source);
diff --git a/pkgs/dart_services/lib/src/sdk.dart b/pkgs/dart_services/lib/src/sdk.dart
index dc09c40ca..5236b6cf0 100644
--- a/pkgs/dart_services/lib/src/sdk.dart
+++ b/pkgs/dart_services/lib/src/sdk.dart
@@ -113,19 +113,6 @@ final class Sdk {
   String get flutterWebSdkPath =>
       path.join(_flutterBinPath, 'cache', 'flutter_web_sdk', 'kernel');
 
-  bool get usesNewBootstrapEngine {
-    final uiWebPackage =
-        path.join(_flutterBinPath, 'cache', 'flutter_web_sdk', 'lib', 'ui_web');
-    final initializationLibrary =
-        path.join(uiWebPackage, 'ui_web', 'initialization.dart');
-
-    final file = File(initializationLibrary);
-    if (!file.existsSync()) return false;
-
-    // Look for 'Future<void> bootstrapEngine({ ... }) { ... }'.
-    return file.readAsStringSync().contains('bootstrapEngine(');
-  }
-
   static Map<String, Object?> _retrieveFlutterVersion(
     String flutterSdkPath,
     String flutterToolPath,