diff --git a/upgrade.md b/upgrade.md
index c638cede..8f549d0e 100644
--- a/upgrade.md
+++ b/upgrade.md
@@ -2,5 +2,6 @@ # Laravel Upgrade Guide
 
 ## Upgrading From 4.0 to 4.1
 
+- `composer update`.
 - Replace `public/index.php`, `artisan.php`.
 - Add new `expire_on_close` option to `session` configuration file.
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