diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # decaffeinate-example-builder
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/decaffeinate/decaffeinate-example-builder.svg)](https://greenkeeper.io/)
+
 A simple Travis script that runs regularly to update all projects specified by
 the [decaffeinate-examples] project.