diff --git a/flake8_builtins.py b/flake8_builtins.py
index 40e55c0..1473b9f 100644
--- a/flake8_builtins.py
+++ b/flake8_builtins.py
@@ -1,9 +1,9 @@
+from flake8 import utils as stdin_utils
+
 import ast
 import builtins
 import inspect
 
-from flake8 import utils as stdin_utils
-
 
 class BuiltinsChecker:
     name = 'flake8_builtins'
diff --git a/run_tests.py b/run_tests.py
index d665529..d886e59 100644
--- a/run_tests.py
+++ b/run_tests.py
@@ -1,11 +1,10 @@
-import ast
-import sys
-import textwrap
+from flake8_builtins import BuiltinsChecker
 from unittest import mock
 
+import ast
 import pytest
-
-from flake8_builtins import BuiltinsChecker
+import sys
+import textwrap
 
 
 class FakeOptions: