diff --git a/components/bt/common/ble_log/extension/log_compression/tests/test_arg_size_types.py b/components/bt/common/ble_log/extension/log_compression/tests/test_arg_size_types.py
index 798c72f289b..97870d54d8a 100644
--- a/components/bt/common/ble_log/extension/log_compression/tests/test_arg_size_types.py
+++ b/components/bt/common/ble_log/extension/log_compression/tests/test_arg_size_types.py
@@ -10,13 +10,15 @@ import re
 import shutil
 import tempfile
 import unittest
+from typing import List
+from typing import Optional
 
 import test_utils  # noqa: F401 — must be first to set up sys.path
 from ble_log_compress import ARG_SIZE_TYPE
 from test_utils import PipelineContext
 
 
-def _extract_size_types_from_macro(macro_str: str) -> list[int] | None:
+def _extract_size_types_from_macro(macro_str: str) -> Optional[List[int]]:
     """Extract size type values from a generated macro string."""
     m = re.search(r'ble_log_compressed_hex_print\(\d+,\d+, (\d+)(?:, (.+?))?(?:,\s*[a-zA-Z_])', macro_str)
     if not m:
diff --git a/components/bt/common/ble_log/extension/log_compression/tests/update_golden.py b/components/bt/common/ble_log/extension/log_compression/tests/update_golden.py
index 0bf98c2084a..2ecf02bf45b 100644
--- a/components/bt/common/ble_log/extension/log_compression/tests/update_golden.py
+++ b/components/bt/common/ble_log/extension/log_compression/tests/update_golden.py
@@ -16,6 +16,8 @@ import shutil
 import sys
 import tempfile
 from pathlib import Path
+from typing import List
+from typing import Optional
 
 TESTS_DIR = Path(__file__).resolve().parent
 SCRIPTS_DIR = TESTS_DIR.parent / 'scripts'
@@ -39,7 +41,7 @@ BLUEDROID_TAGS = [
 ]
 
 
-def run_pipeline(fixture_files: list[str], output_name: str, tags_with_preserve: list[str] | None = None) -> None:
+def run_pipeline(fixture_files: List[str], output_name: str, tags_with_preserve: Optional[List[str]] = None) -> None:
     """Run compression on fixture files and save the generated header as a golden file."""
     tags_with_preserve = tags_with_preserve or ['APPL_TRACE_ERROR', 'APPL_TRACE_WARNING']