I have reproduced the issue on the latest CLI version.
Yes, I am on the latest version
I have searched existing posts and this report is not a duplicate.
Yes, this isn’t a duplicate
In which of these areas are you experiencing a problem?
Other
Expected behavior
To be able to upgrade Shopify-cli
Actual behavior
Warning: Skipping shopify/shopify because it is not trusted. Run brew trust shopify/shopify to trust it.
Reproduction steps
Run brew update
Observe the warning about shopify/shopify not being trusted
Verbose output
$ brew update --verbose
…
Warning: Skipping shopify/shopify because it is not trusted. Run brew trust shopify/shopify to trust it.
…
Operating system
macOS 15.7.4
CLI version
@shopify/cli/4.1.0 darwin-arm64 node-v26.3.0