diff --git a/src/Post_Command.php b/src/Post_Command.php
index <HASH>..<HASH> 100644
--- a/src/Post_Command.php
+++ b/src/Post_Command.php
@@ -108,7 +108,7 @@ class Post_Command extends \WP_CLI\CommandWithDBObject {
 	 *   be read from STDIN.
 	 *
 	 * --<field>=<value>
-	 * : One or more fields to update. See wp_update_post().
+	 * : One or more fields to update. See wp_insert_post().
 	 *
 	 * [--defer-term-counting]
 	 * : Recalculate term count in batch, for a performance boost.
update docs for 'wp post update'

There is no list of available fields on the developer docs page for wp_update_post()