diff --git a/scripts/versionbump.py b/scripts/versionbump.py
index 027e15658..52ba19173 100644
--- a/scripts/versionbump.py
+++ b/scripts/versionbump.py
@@ -19,7 +19,9 @@ def main():
         raise ValueError(f"Invalid version format, must be x.y.z: {new_version_str}")
 
     new_version = version.parse(new_version_str)
-    incremented_version = version.Version(f"{new_version.major}.{new_version.minor}.{new_version.micro + 1}")
+    incremented_version = version.Version(
+        f"{new_version.major}.{new_version.minor}.{new_version.micro + 1}"
+    )
 
     with open("aider/__init__.py", "r") as f:
         content = f.read()
diff --git a/tests/test_coder.py b/tests/test_coder.py
index 856bd9abc..a9ffaeca5 100644
--- a/tests/test_coder.py
+++ b/tests/test_coder.py
@@ -1,4 +1,3 @@
-import os
 import tempfile
 import unittest
 from pathlib import Path
diff --git a/tests/test_repomap.py b/tests/test_repomap.py
index 1ecc951b2..82c100468 100644
--- a/tests/test_repomap.py
+++ b/tests/test_repomap.py
@@ -4,7 +4,6 @@ from unittest.mock import patch
 
 from aider.io import InputOutput
 from aider.repomap import RepoMap
-
 from tests.utils import IgnorantTemporaryDirectory