diff --git a/capa/main.py b/capa/main.py
index 52d2deca2..34037ee96 100644
--- a/capa/main.py
+++ b/capa/main.py
@@ -18,8 +18,6 @@
 import datetime
 import textwrap
 import contextlib
-import collections
-from types import TracebackType
 from typing import Any, Set, Dict, List, Callable, Optional
 from pathlib import Path