Update you TREZOR firmware to the latest version (at least [c720614](https://github.com/trezor/trezor-mcu/commit/c720614f6e9b9c07f446c95bda0257980d942871)).
Update you TREZOR firmware to the latest version (at least v1.4.0).
Install latest `trezor-agent` package from [gpg-agent](https://github.com/romanz/trezor-agent/commits/gpg-agent) branch:
Install latest `trezor-agent` package from GitHub: