diff --git a/example/demo.dart b/example/demo.dart
index 49cc91c..f082d04 100644
--- a/example/demo.dart
+++ b/example/demo.dart
@@ -8,7 +8,7 @@ library demo;
 import 'demolib.dart';
 import 'package:propcheck/propcheck.dart';
 import 'package:enumerators/combinators.dart' as c;
-import 'package:unittest/unittest.dart' hide equals;
+import 'package:test/test.dart' hide equals;
 
 /* --- the properties to test --- */
 
diff --git a/example/mirrors_demo.dart b/example/mirrors_demo.dart
index eeec688..e387ac3 100644
--- a/example/mirrors_demo.dart
+++ b/example/mirrors_demo.dart
@@ -2,7 +2,7 @@ library mirrors_demo;
 
 import 'demolib.dart';
 import 'package:propcheck/propcheck_mirrors.dart';
-import 'package:unittest/unittest.dart' hide equals;
+import 'package:test/test.dart' hide equals;
 
 /* --- the properties to test --- */
 
diff --git a/pubspec.yaml b/pubspec.yaml
index 018237f..a1718ca 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -9,4 +9,4 @@ dependencies:
   enumerators: '>=0.6.0 <0.7.0'
 dev_dependencies:
   collection: '>=1.4.0 <1.15.0'
-  unittest: '>=0.9.0 <0.10.0'
+  test: '>=0.9.0 <=1.3.0'
diff --git a/test/mirrors_test.dart b/test/mirrors_test.dart
index 29455a0..f359b92 100644
--- a/test/mirrors_test.dart
+++ b/test/mirrors_test.dart
@@ -6,7 +6,7 @@
 import 'package:propcheck/propcheck_mirrors.dart';
 import 'package:enumerators/combinators.dart' as c;
 import 'package:enumerators/enumerators.dart' as e;
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 
 bool boolArgument(bool x) => true;
 bool intArgument(int x) => true;
diff --git a/test/quickcheck_test.dart b/test/quickcheck_test.dart
index 34a2303..d5e6b5d 100644
--- a/test/quickcheck_test.dart
+++ b/test/quickcheck_test.dart
@@ -6,7 +6,7 @@
 import 'package:propcheck/propcheck.dart';
 import 'package:enumerators/combinators.dart' as c;
 import 'package:enumerators/enumerators.dart' as e;
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 
 void quickCheckPerformsCheck() {
   bool called = false;
@@ -23,7 +23,7 @@ void falseTriggersException() {
     return false;
   }
   expect(() => new QuickCheck(quiet: true).check(forall(c.ints, test)),
-         throwsA(new isInstanceOf<String>()));
+         throwsA(const TypeMatcher<String>()));
 }
 
 void quickCheckHonorsMaxSize() {
diff --git a/test/smallcheck_test.dart b/test/smallcheck_test.dart
index 38818ee..91ce9b5 100644
--- a/test/smallcheck_test.dart
+++ b/test/smallcheck_test.dart
@@ -5,7 +5,7 @@
 
 import 'package:propcheck/propcheck.dart';
 import 'package:enumerators/combinators.dart' as c;
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 
 void smallCheckPerformsCheck() {
   bool called = false;
@@ -22,7 +22,7 @@ void falseTriggersException() {
     return false;
   }
   expect(() => new SmallCheck(quiet: true).check(forall(c.ints, test)),
-         throwsA(new isInstanceOf<String>()));
+         throwsA(const TypeMatcher<String>()));
 }
 
 void smallCheckIsExhaustive() {