diff --git a/README.md b/README.md
index 75e3c98..59023ae 100644
--- a/README.md
+++ b/README.md
@@ -35,7 +35,8 @@ These formats are supported for now: `http`, `curl`, `wget`.
 ## Install and upgrade
 
 ```
-composer global r axenov/pm-convert
+composer global r axenov/pm-convert   # install
+composer global u axenov/pm-convert   # upgrade
 ```
 
 Make sure your `~/.config/composer/vendor/bin` is in `$PATH` env: