diff --git a/pyproject.toml b/pyproject.toml
index 3d6ad66..5dfcf9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,3 +42,7 @@ dev = [
   "httpx==0.28.1",
   "httpx2>=2.5,<3",
 ]
+
+[tool.ruff.lint.per-file-ignores]
+"tests/test_api_smoke.py" = ["E402"]
+"tests/test_module_system.py" = ["E402"]
diff --git a/tests/test_module_system.py b/tests/test_module_system.py
index 4ba37d0..4105d41 100644
--- a/tests/test_module_system.py
+++ b/tests/test_module_system.py
@@ -13,7 +13,6 @@ import stat
 import subprocess
 import sys
 import tempfile
-import textwrap
 import tomllib
 import unittest
 from dataclasses import replace