diff --git a/README.rst b/README.rst
index d1373bf0..ee1a4a94 100644
--- a/README.rst
+++ b/README.rst
@@ -49,6 +49,7 @@ Usage
 
       COMMANDS:
         update                    Update the package lists.
+        upgrade                   Upgrade all the packages.
         build <packages>          Build only the packages.
         install <packages>        Build and install the packages.
         remove <packages>         Remove installed packages.