diff --git a/README.md b/README.md
index 3cf5315..7257153 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ signed download host [get.attesto.eu](https://get.attesto.eu).
 
 ```sh
 brew tap attesto/attesto https://git.attesto.eu/attesto/homebrew-attesto.git
+brew trust attesto/attesto
 brew install attesto              # the CLI (offline verifier)
 brew install attesto-local-vault  # the Local Vault container wrapper
 ```