diff --git a/capa/features/extractors/base_extractor.py b/capa/features/extractors/base_extractor.py
index 32911d39..8dd3cdf7 100644
--- a/capa/features/extractors/base_extractor.py
+++ b/capa/features/extractors/base_extractor.py
@@ -8,7 +8,7 @@
 
 import abc
 import dataclasses
-from typing import Any, Dict, Tuple, Union, Iterator, TextIO, BinaryIO
+from typing import Any, Dict, Tuple, Union, Iterator
 from dataclasses import dataclass
 
 import capa.features.address