diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8c179c7..e802d7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.5
+
+- Fix usage of SDK constants.
+
 ## 1.0.4
 
 - Set max SDK version to <3.0.0.
diff --git a/lib/discovery.dart b/lib/discovery.dart
index 020d99a..57584b6 100644
--- a/lib/discovery.dart
+++ b/lib/discovery.dart
@@ -211,7 +211,7 @@
   HttpClient client = new HttpClient();
   HttpClientRequest request = await client.getUrl(uri);
   HttpClientResponse response = await request.close();
-  if (response.statusCode != HttpStatus.OK) {
+  if (response.statusCode != HttpStatus.ok) {
     throw new HttpException('${response.statusCode} ${response.reasonPhrase}',
         uri: uri);
   }
diff --git a/pubspec.yaml b/pubspec.yaml
index c584681..4bad1cf 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: package_config
-version: 1.0.4
+version: 1.0.5
 description: Support for working with Package Resolution config files.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/package_config
@@ -12,4 +12,4 @@
   path: ^1.0.0
 
 dev_dependencies:
-  test: ^1.0.0
+  test: ^1.3.0
diff --git a/test/discovery_test.dart b/test/discovery_test.dart
index 2c60db3..2824272 100644
--- a/test/discovery_test.dart
+++ b/test/discovery_test.dart
@@ -232,8 +232,8 @@
     Uri file = directory.resolve(".packages");
     expect(
         loadPackagesFile(file),
-        throwsA(anyOf(new isInstanceOf<FileSystemException>(),
-            new isInstanceOf<HttpException>())));
+        throwsA(anyOf(new TypeMatcher<FileSystemException>(),
+            new TypeMatcher<HttpException>())));
   });
 
   generalTest("loadPackagesFile syntax error", {".packages": "syntax error"},
@@ -280,7 +280,7 @@
     var serverSub;
     var uri;
     setUp(() {
-      return HttpServer.bind(InternetAddress.LOOPBACK_IP_V4, 0).then((server) {
+      return HttpServer.bind(InternetAddress.loopbackIPv4, 0).then((server) {
         uri = new Uri(
             scheme: "http", host: "127.0.0.1", port: server.port, path: "/");
         serverSub = server.listen((HttpRequest request) {