diff --git a/README.md b/README.md
index 732f1f7..482e045 100755
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@
 <p>Run scripts that set and use environment variables across platforms</p>
 </div>
 
+**🚨 NOTICE: cross-env still works well, but is in maintenance mode. No new
+features will be added, only serious and common-case bugs will be fixed, and
+it will only be kept up-to-date with Node.js over time.
+[Learn more](https://github.com/kentcdodds/cross-env/issues/257)**
+
 ---
 
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