diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index e4336dc..6cb55a3 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,7 +18,7 @@ repos:
         files: ^src/|^scripts/|^migrant/
 
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.3.1
+    rev: v3.8.0
     hooks:
       - id: pyupgrade
         args: ["--py39-plus"]
@@ -28,3 +28,8 @@ repos:
     hooks:
       - id: isort
         args: ["--profile", "black", "--line-length", "88", "--trailing-comma"]
+
+  - repo: https://github.com/pycqa/flake8
+    rev: 6.0.0
+    hooks:
+      - id: flake8
diff --git a/src/shoobx/mocks3/tests/test_config.py b/src/shoobx/mocks3/tests/test_config.py
index 3652004..6151ff9 100644
--- a/src/shoobx/mocks3/tests/test_config.py
+++ b/src/shoobx/mocks3/tests/test_config.py
@@ -5,11 +5,11 @@
 ###############################################################################
 """Shoobx S3 Config Test
 """
-import mock
 import os
 import shutil
 import tempfile
 import unittest
+from unittest import mock
 
 from shoobx.mocks3 import config
 
@@ -43,4 +43,4 @@ def test_configure_dupe_env_key(self):
         with open(config_path, "w") as file:
             file.write(TEST_CONFIG % self._dir)
         # Ensure loading does not fail.
-        app = config.configure(config_path)
+        config.configure(config_path)