README.md in anomaly_detection-0.2.2 vs README.md in anomaly_detection-0.3.0

@@ -2,10 +2,10 @@
 
 :fire: Time series [AnomalyDetection](https://github.com/twitter/AnomalyDetection) for Ruby
 
 Learn [how it works](https://blog.twitter.com/engineering/en_us/a/2015/introducing-practical-and-robust-anomaly-detection-in-a-time-series)
 
-[![Build Status](https://github.com/ankane/AnomalyDetection.rb/workflows/build/badge.svg?branch=master)](https://github.com/ankane/AnomalyDetection.rb/actions)
+[![Build Status](https://github.com/ankane/AnomalyDetection.rb/actions/workflows/build.yml/badge.svg)](https://github.com/ankane/AnomalyDetection.rb/actions)
 
 ## Installation
 
 Add this line to your application’s Gemfile: