diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2296d19..f4a2d0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 1.0.3
+
+- Require Dart SDK 1.22.0
+- Support `package:async` v2
+
 ## 1.0.2
 
 - Fix Strong mode errors with `package:shelf` v0.7.x
diff --git a/pubspec.yaml b/pubspec.yaml
index cbf7e47..6348de4 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: shelf_packages_handler
-version: 1.0.3-dev
+version: 1.0.3
 description: A shelf handler for serving a `packages/` directory.
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/shelf_packages_handler
@@ -8,7 +8,7 @@
   sdk: '>=1.22.0 <2.0.0'
 
 dependencies:
-  async: '^1.1.0'
+  async: '>=1.1.0 <3.0.0'
   path: '^1.0.0'
   shelf: '>=0.6.0 <0.8.0'
   shelf_static: '^0.2.0'