diff --git a/tests/device_tests/test_session.py b/tests/device_tests/test_session.py
index 36bca2d46b..3fbc860db7 100644
--- a/tests/device_tests/test_session.py
+++ b/tests/device_tests/test_session.py
@@ -18,7 +18,6 @@ import pytest
 
 from trezorlib import cardano, messages, models
 from trezorlib.btc import get_public_node
-from trezorlib.client import ProtocolVersion
 from trezorlib.debuglink import SessionDebugWrapper as Session
 from trezorlib.debuglink import TrezorClientDebugLink as Client
 from trezorlib.exceptions import TrezorFailure