diff --git a/pkgs/io/pubspec.yaml b/pkgs/io/pubspec.yaml
index e8a38f4..7be2de4 100644
--- a/pkgs/io/pubspec.yaml
+++ b/pkgs/io/pubspec.yaml
@@ -16,5 +16,5 @@
 
 dev_dependencies:
   dart_style: ^1.0.7
-  test: ^0.12.0
+  test: ^1.0.0
   test_descriptor: ^1.0.0
diff --git a/pkgs/io/test/process_manager_test.dart b/pkgs/io/test/process_manager_test.dart
index 0503a9f..51fb521 100644
--- a/pkgs/io/test/process_manager_test.dart
+++ b/pkgs/io/test/process_manager_test.dart
@@ -19,7 +19,7 @@
   List<String> stderrLog;
 
   test('spawn functions should match the type definition of Process.start', () {
-    final isStartProcess = const isInstanceOf<StartProcess>();
+    final isStartProcess = const TypeMatcher<StartProcess>();
     expect(Process.start, isStartProcess);
     final manager = new ProcessManager();
     expect(manager.spawn, isStartProcess);