diff --git a/README.md b/README.md
index 2a60f40..96cd06c 100644
--- a/README.md
+++ b/README.md
@@ -1814,7 +1814,8 @@ Renew the Subkeys:
 
 ```console
 gpg --batch --pinentry-mode=loopback \
-  --passphrase "$CERTIFY_PASS" --quick-set-expire "$KEYFP" "$EXPIRATION" "*"
+  --passphrase "$CERTIFY_PASS" --quick-set-expire "$KEYFP" "$EXPIRATION" \
+  $(gpg -k --with-colons $IDENTITY | awk -F: '/^fpr:/ { print $10 }' | tail -n "+2" | tr "\n" " ")
 ```
 
 Export the updated public key: