diff --git a/tests/unit_tests/test_espota2.py b/tests/unit_tests/test_espota2.py
index 24b6a57b63..f7962ba5e7 100644
--- a/tests/unit_tests/test_espota2.py
+++ b/tests/unit_tests/test_espota2.py
@@ -9,7 +9,7 @@ import io
 from pathlib import Path
 import socket
 import struct
-from unittest.mock import MagicMock, Mock, call, patch
+from unittest.mock import Mock, call, patch
 
 import pytest
 from pytest import CaptureFixture
@@ -86,15 +86,6 @@ def mock_run_ota_impl() -> Generator[Mock]:
         yield mock
 
 
-@pytest.fixture
-def mock_open_file() -> Generator[tuple[Mock, MagicMock]]:
-    """Mock file opening for testing."""
-    with patch("builtins.open", create=True) as mock_open:
-        mock_file = MagicMock()
-        mock_open.return_value.__enter__.return_value = mock_file
-        yield mock_open, mock_file
-
-
 @pytest.fixture
 def mock_socket_constructor(mock_socket: Mock) -> Generator[Mock]:
     """Mock socket.socket constructor to return our mock socket."""