diff --git a/dwds/CHANGELOG.md b/dwds/CHANGELOG.md
index a56465df0..738af0644 100644
--- a/dwds/CHANGELOG.md
+++ b/dwds/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 27.0.1-wip
+## 27.0.1
 - Replace `package:uuid` dependency with internal `Uuid` class for generating version 4 UUIDs.
 - Add DDC Library Bundle tests in `dwds/test/integration/instances`.
 - Fix WebSocket reconnection hang by ensuring Dart isolate recreation when a new browser client reuses an `AppDebugServices`.
@@ -14,6 +14,8 @@
 - Split additional tests across DDC module systems.
 - Fix issue where `DebugConnection` did not complete `onDone` if `WebkitDebugger` fails to reconnect to the debugger after the connection closes.
 - Fix `FormatException` in `ExtensionDebugger` by making `ExtensionEvent.fromJson` robust to missing headers and Map-typed params.
+- Fix `StateError` in `DwdsInjector` by falling back to `package_config` when `Isolate.resolvePackageUri` fails in AOT mode.
+
 
 ## 27.0.0
 - Remove `package:built_value`, `package:built_value_generator`, and `package:built_collection` dependencies.
diff --git a/dwds/lib/src/handlers/injector.dart b/dwds/lib/src/handlers/injector.dart
index 610ca5b76..efa22e409 100644
--- a/dwds/lib/src/handlers/injector.dart
+++ b/dwds/lib/src/handlers/injector.dart
@@ -12,6 +12,7 @@ import 'package:dwds/src/config/tool_configuration.dart';
 import 'package:dwds/src/loaders/ddc_library_bundle.dart';
 import 'package:dwds/src/version.dart';
 import 'package:logging/logging.dart';
+import 'package:package_config/package_config.dart';
 import 'package:shelf/shelf.dart';
 
 /// File extension that build_web_compilers will place the
@@ -44,9 +45,33 @@ class DwdsInjector {
   Middleware get middleware => (innerHandler) {
     return (Request request) async {
       if (request.url.path.endsWith('$_clientScript.js')) {
-        final uri = await Isolate.resolvePackageUri(
+        var uri = await Isolate.resolvePackageUri(
           Uri.parse('package:$_clientScript.js'),
         );
+        if (uri == null) {
+          // Fallback for AOT mode: Isolate.resolvePackageUri returns null.
+          // We use package_config to resolve the package path relative to the
+          // snapshot.
+          try {
+            if (Platform.script.scheme == 'file') {
+              final packageConfig = await findPackageConfig(
+                File(Platform.script.toFilePath()).parent,
+              );
+              if (packageConfig != null) {
+                uri = packageConfig.resolve(
+                  Uri.parse('package:$_clientScript.js'),
+                );
+              }
+            }
+          } catch (e, s) {
+            _logger.warning(
+              'Failed to resolve package:$_clientScript.js using'
+              ' package_config',
+              e,
+              s,
+            );
+          }
+        }
         if (uri == null) {
           throw StateError('Cannot resolve "package:$_clientScript.js"');
         }
diff --git a/dwds/lib/src/version.dart b/dwds/lib/src/version.dart
index a2126288c..e7766d008 100644
--- a/dwds/lib/src/version.dart
+++ b/dwds/lib/src/version.dart
@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '27.0.1-wip';
+const packageVersion = '27.0.1';
diff --git a/dwds/pubspec.yaml b/dwds/pubspec.yaml
index b18971f24..be307e572 100644
--- a/dwds/pubspec.yaml
+++ b/dwds/pubspec.yaml
@@ -1,6 +1,6 @@
 name: dwds
 # Every time this changes you need to run `dart run build_runner build`.
-version: 27.0.1-wip
+version: 27.0.1
 
 description: >-
   A service that proxies between the Chrome debug protocol and the Dart VM