diff --git a/README.md b/README.md
index 806f486e1..4344093f2 100644
--- a/README.md
+++ b/README.md
@@ -49,9 +49,11 @@ For security, avoids loading WordPress when verifying checksums.
 
 ## Installing
 
-Installing this package requires WP-CLI v0.23.0 or greater. Update to the latest stable release with `wp cli update`.
+This package is included with WP-CLI itself, no additional installation necessary.
 
-Once you've done so, you can install this package with `wp package install wp-cli/checksum-command`.
+To install the latest version of this package over what's included in WP-CLI, run:
+
+    wp package install git@github.com:wp-cli/checksum-command.git
 
 ## Contributing
 
diff --git a/composer.json b/composer.json
index 086102d18..7bb4833d5 100644
--- a/composer.json
+++ b/composer.json
@@ -31,6 +31,7 @@
         "branch-alias": {
             "dev-master": "1.x-dev"
         },
+        "bundled": true,
         "commands": [
             "checksum core"
         ]