diff --git a/apps/README.md b/apps/README.md
index 520b3e4..7e9cc16 100644
--- a/apps/README.md
+++ b/apps/README.md
@@ -258,7 +258,7 @@ Umbrel development environment ([`umbrel-dev`](https://github.com/getumbrel/umbr
 
 ```sh
 brew install lukechilds/tap/umbrel-dev
-brew cask install virtualbox vagrant
+brew install --cask virtualbox vagrant
 ```
 
 2\. Now let's initialize our development environment and boot the VM: