diff --git a/src/compaction/cli.py b/src/compaction/cli.py
index e7e412a..c1a9267 100644
--- a/src/compaction/cli.py
+++ b/src/compaction/cli.py
@@ -4,7 +4,7 @@
 import warnings
 from functools import partial
 from io import StringIO
-from typing import Optional, TextIO
+from typing import TextIO
 
 import click
 import numpy as np  # type: ignore
diff --git a/src/compaction/compaction.py b/src/compaction/compaction.py
index 45c44e8..78cd19a 100644
--- a/src/compaction/compaction.py
+++ b/src/compaction/compaction.py
@@ -1,6 +1,4 @@
 #! /usr/bin/env python
-from typing import Optional
-
 import numpy as np  # type: ignore
 from scipy.constants import g  # type: ignore