diff --git a/pubspec.yaml b/pubspec.yaml
index e9dfe3d..e2a5c98 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: sse
-version: 1.0.0
+version: 2.0.0
 author: Dart Team <misc@dartlang.org>
 homepage: https://github.com/dart-lang/sse
 description: >-