diff --git a/README.md b/README.md
index 34b3789..a1581e3 100644
--- a/README.md
+++ b/README.md
@@ -208,6 +208,16 @@ Show the tool name and version number.
 mdrs version
 ```
 
+### selfupdate
+
+Update the current `mdrs` binary to the latest published release for
+the same build target.
+
+```shell
+mdrs selfupdate
+mdrs selfupdate -y
+```
+
 ### help
 
 Show help for a command.