diff --git a/pubspec.yaml b/pubspec.yaml
index 8f012b0faff4c0b22148e2e03b5f3133990eb602..f28b7cb5cb1b0b9798737de7c2cc3753d7f51e7d 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test
-version: 0.12.0-dev
+version: 0.12.0-beta.6
 author: Dart Team <misc@dartlang.org>
 description: A library for writing dart unit tests.
 homepage: https://github.com/dart-lang/test