diff --git a/pkgs/test/CHANGELOG.md b/pkgs/test/CHANGELOG.md
index ef24aed..f2e4f65 100644
--- a/pkgs/test/CHANGELOG.md
+++ b/pkgs/test/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.14.2
+
+* Update `test_core` to `0.3.3`.
+
 ## 1.14.1
 
 * Allow the latest shelf_packages_handler.
diff --git a/pkgs/test/pubspec.yaml b/pkgs/test/pubspec.yaml
index 1b477fe..cafa909 100644
--- a/pkgs/test/pubspec.yaml
+++ b/pkgs/test/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test
-version: 1.14.1
+version: 1.14.2
 description: A full featured library for writing and running Dart tests.
 homepage: https://github.com/dart-lang/test/blob/master/pkgs/test
 
@@ -34,7 +34,7 @@
   yaml: ^2.0.0
   # Use an exact version until the test_api and test_core package are stable.
   test_api: 0.2.15
-  test_core: 0.3.2
+  test_core: 0.3.3
 
 dev_dependencies:
   fake_async: ^1.0.0
diff --git a/pkgs/test_core/CHANGELOG.md b/pkgs/test_core/CHANGELOG.md
index dcb572a..4e51aba 100644
--- a/pkgs/test_core/CHANGELOG.md
+++ b/pkgs/test_core/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.3.3
+
+* Support latest `package:vm_service`.
+
 ## 0.3.2
 
 * Drop the `package_resolver` dependency.
diff --git a/pkgs/test_core/lib/src/runner/vm/platform.dart b/pkgs/test_core/lib/src/runner/vm/platform.dart
index 83e4b4f..850ff7c 100644
--- a/pkgs/test_core/lib/src/runner/vm/platform.dart
+++ b/pkgs/test_core/lib/src/runner/vm/platform.dart
@@ -81,7 +81,7 @@
       await client.setName(isolateRef.id, path);
       var libraryRef = (await client.getIsolate(isolateRef.id))
           .libraries
-          .firstWhere((library) => library.uri == libraryPath) as LibraryRef;
+          .firstWhere((library) => library.uri == libraryPath);
       var url = _observatoryUrlFor(
           info.serverUri.toString(), isolateRef.id, libraryRef.id);
       environment = VMEnvironment(url, isolateRef, client);
diff --git a/pkgs/test_core/pubspec.yaml b/pkgs/test_core/pubspec.yaml
index 6646ea8..12eed55 100644
--- a/pkgs/test_core/pubspec.yaml
+++ b/pkgs/test_core/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test_core
-version: 0.3.2
+version: 0.3.3
 description: A basic library for writing tests and running them on the VM.
 homepage: https://github.com/dart-lang/test/blob/master/pkgs/test_core
 
@@ -24,7 +24,7 @@
   source_span: ^1.4.0
   stack_trace: ^1.9.0
   stream_channel: ">=1.7.0 <3.0.0"
-  vm_service: '>=1.0.0 <4.0.0'
+  vm_service: '>=1.0.0 <5.0.0'
   yaml: ^2.0.0
   # Use a tight version constraint to ensure that a constraint on matcher
   # properly constrains all features it provides.