diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 08aef91b..9b908c6d 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -32,7 +32,7 @@ repos:
       - id: flake8
         name: flake8
         additional_dependencies:
-          - hacking>=3.0.1,<3.1.0
+          - hacking>=6.1.0,<6.2.0
         language: python
         entry: flake8
         files: '^.*\.py$'
diff --git a/oslo_config/tests/test_sources.py b/oslo_config/tests/test_sources.py
index 2da73da1..7c1e8580 100644
--- a/oslo_config/tests/test_sources.py
+++ b/oslo_config/tests/test_sources.py
@@ -308,8 +308,8 @@ class URISourceTestCase(base.BaseTestCase):
         # testing driver loading
         self.assertEqual(self.conf._sources, [])
         self.conf._load_alternative_sources()
-        self.assertEqual(type(self.conf._sources[0]),
-                         _uri.URIConfigurationSource)
+        self.assertIsInstance(self.conf._sources[0],
+                              _uri.URIConfigurationSource)
 
         source = self.conf._open_source_from_opt_group(group)