diff --git a/.travis.yml b/.travis.yml
index fbe169b..beba759 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@
 dart:
   - stable
   - dev
-  - 1.22.0
+  - 1.22.1
 env:
   - TEST_PLATFORM=vm
   - TEST_PLATFORM=firefox
diff --git a/README.md b/README.md
index 83d79f6..639e746 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/dart-lang/observable.svg?branch=master)](https://travis-ci.org/dart-lang/observable)
+
 Support for detecting and being notified when an object is mutated.
 
 An observable is a way to be notified of a continuous stream of events over time.