diff --git a/jedi/api/__init__.py b/jedi/api/__init__.py
index 2be38b8f..a0430e90 100644
--- a/jedi/api/__init__.py
+++ b/jedi/api/__init__.py
@@ -50,7 +50,7 @@ from jedi.inference.utils import to_list
 sys.setrecursionlimit(3000)
 
 
-class Script(object):
+class Script:
     """
     A Script is the base for completions, goto or whatever you want to do with
     Jedi. The counter part of this class is :class:`Interpreter`, which works
diff --git a/jedi/api/classes.py b/jedi/api/classes.py
index 2cab497a..a8d9fb19 100644
--- a/jedi/api/classes.py
+++ b/jedi/api/classes.py
@@ -54,7 +54,7 @@ def _values_to_definitions(values):
     return [Name(c.inference_state, c.name) for c in values]
 
 
-class BaseName(object):
+class BaseName:
     """
     The base class for all definitions, completions and signatures.
     """
diff --git a/jedi/api/environment.py b/jedi/api/environment.py
index 54ad5422..3f1f238f 100644
--- a/jedi/api/environment.py
+++ b/jedi/api/environment.py
@@ -30,7 +30,7 @@ class InvalidPythonEnvironment(Exception):
     """
 
 
-class _BaseEnvironment(object):
+class _BaseEnvironment:
     @memoize_method
     def get_grammar(self):
         version_string = '%s.%s' % (self.version_info.major, self.version_info.minor)
@@ -121,7 +121,7 @@ class Environment(_BaseEnvironment):
         return self._get_subprocess().get_sys_path()
 
 
-class _SameEnvironmentMixin(object):
+class _SameEnvironmentMixin:
     def __init__(self):
         self._start_executable = self.executable = sys.executable
         self.path = sys.prefix
diff --git a/jedi/api/errors.py b/jedi/api/errors.py
index 6dc9ae2d..10cb62af 100644
--- a/jedi/api/errors.py
+++ b/jedi/api/errors.py
@@ -8,7 +8,7 @@ def parso_to_jedi_errors(grammar, module_node):
     return [SyntaxError(e) for e in grammar.iter_errors(module_node)]
 
 
-class SyntaxError(object):
+class SyntaxError:
     """
     Syntax errors are generated by :meth:`.Script.get_syntax_errors`.
     """
diff --git a/jedi/api/helpers.py b/jedi/api/helpers.py
index 97afb363..98685918 100644
--- a/jedi/api/helpers.py
+++ b/jedi/api/helpers.py
@@ -203,7 +203,7 @@ def filter_follow_imports(names, follow_builtin_imports=False):
             yield name
 
 
-class CallDetails(object):
+class CallDetails:
     def __init__(self, bracket_leaf, children, position):
         ['bracket_leaf', 'call_index', 'keyword_name_str']
         self.bracket_leaf = bracket_leaf
diff --git a/jedi/api/interpreter.py b/jedi/api/interpreter.py
index d7d573c7..befafe5a 100644
--- a/jedi/api/interpreter.py
+++ b/jedi/api/interpreter.py
@@ -17,7 +17,7 @@ def _create(inference_state, obj):
     )
 
 
-class NamespaceObject(object):
+class NamespaceObject:
     def __init__(self, dct):
         self.__dict__ = dct
 
diff --git a/jedi/api/project.py b/jedi/api/project.py
index ae00c38b..57b985e0 100644
--- a/jedi/api/project.py
+++ b/jedi/api/project.py
@@ -56,7 +56,7 @@ def _remove_duplicates_from_path(path):
         yield p
 
 
-class Project(object):
+class Project:
     """
     Projects are a simple way to manage Python folders and define how Jedi does
     import resolution. It is mostly used as a parameter to :class:`.Script`.
diff --git a/jedi/api/refactoring/__init__.py b/jedi/api/refactoring/__init__.py
index 7f8394c9..14c4d910 100644
--- a/jedi/api/refactoring/__init__.py
+++ b/jedi/api/refactoring/__init__.py
@@ -12,7 +12,7 @@ EXPRESSION_PARTS = (
 ).split()
 
 
-class ChangedFile(object):
+class ChangedFile:
     def __init__(self, inference_state, from_path, to_path,
                  module_node, node_to_str_map):
         self._inference_state = inference_state
@@ -72,7 +72,7 @@ class ChangedFile(object):
         return '<%s: %s>' % (self.__class__.__name__, self._from_path)
 
 
-class Refactoring(object):
+class Refactoring:
     def __init__(self, inference_state, file_to_node_changes, renames=()):
         self._inference_state = inference_state
         self._renames = renames
diff --git a/jedi/debug.py b/jedi/debug.py
index 8c7c883f..72259842 100644
--- a/jedi/debug.py
+++ b/jedi/debug.py
@@ -45,7 +45,7 @@ try:
             _inited = True
 
 except ImportError:
-    class Fore(object):  # type: ignore[no-redef]
+    class Fore:  # type: ignore[no-redef]
         RED = ''
         GREEN = ''
         YELLOW = ''
diff --git a/jedi/file_io.py b/jedi/file_io.py
index c4518fdb..ead17335 100644
--- a/jedi/file_io.py
+++ b/jedi/file_io.py
@@ -3,7 +3,7 @@ import os
 from parso import file_io
 
 
-class AbstractFolderIO(object):
+class AbstractFolderIO:
     def __init__(self, path):
         self.path = path
 
@@ -57,7 +57,7 @@ class FolderIO(AbstractFolderIO):
                     del dirs[i]
 
 
-class FileIOFolderMixin(object):
+class FileIOFolderMixin:
     def get_parent_folder(self):
         return FolderIO(os.path.dirname(self.path))
 
diff --git a/jedi/inference/__init__.py b/jedi/inference/__init__.py
index 5d5e4357..8cf6a1c2 100644
--- a/jedi/inference/__init__.py
+++ b/jedi/inference/__init__.py
@@ -81,7 +81,7 @@ from jedi.inference.imports import follow_error_node_imports_if_possible
 from jedi.plugins import plugin_manager
 
 
-class InferenceState(object):
+class InferenceState:
     def __init__(self, project, environment=None, script_path=None):
         if environment is None:
             environment = project.get_environment()
diff --git a/jedi/inference/analysis.py b/jedi/inference/analysis.py
index 1e51db55..c272a9cb 100644
--- a/jedi/inference/analysis.py
+++ b/jedi/inference/analysis.py
@@ -26,7 +26,7 @@ CODES = {
 }
 
 
-class Error(object):
+class Error:
     def __init__(self, name, module_path, start_pos, message=None):
         self.path = module_path
         self._start_pos = start_pos
diff --git a/jedi/inference/arguments.py b/jedi/inference/arguments.py
index c22d70de..8602f494 100644
--- a/jedi/inference/arguments.py
+++ b/jedi/inference/arguments.py
@@ -124,7 +124,7 @@ def _parse_argument_clinic(string):
             allow_kwargs = True
 
 
-class _AbstractArgumentsMixin(object):
+class _AbstractArgumentsMixin:
     def unpack(self, funcdef=None):
         raise NotImplementedError
 
diff --git a/jedi/inference/base_value.py b/jedi/inference/base_value.py
index c5b2cec0..e51e063c 100644
--- a/jedi/inference/base_value.py
+++ b/jedi/inference/base_value.py
@@ -22,7 +22,7 @@ from jedi.cache import memoize_method
 sentinel = object()
 
 
-class HelperValueMixin(object):
+class HelperValueMixin:
     def get_root_context(self):
         value = self
         if value.parent_context is None:
@@ -363,7 +363,7 @@ class TreeValue(Value):
         return '<%s: %s>' % (self.__class__.__name__, self.tree_node)
 
 
-class ContextualizedNode(object):
+class ContextualizedNode:
     def __init__(self, context, node):
         self.context = context
         self.node = node
@@ -405,7 +405,7 @@ def _getitem(value, index_values, contextualized_node):
     return result
 
 
-class ValueSet(object):
+class ValueSet:
     def __init__(self, iterable):
         self._set = frozenset(iterable)
         for value in iterable:
diff --git a/jedi/inference/compiled/access.py b/jedi/inference/compiled/access.py
index 46dc8249..29f5ced1 100644
--- a/jedi/inference/compiled/access.py
+++ b/jedi/inference/compiled/access.py
@@ -134,7 +134,7 @@ def load_module(inference_state, dotted_name, sys_path):
     return create_access_path(inference_state, module)
 
 
-class AccessPath(object):
+class AccessPath:
     def __init__(self, accesses):
         self.accesses = accesses
 
@@ -156,7 +156,7 @@ def get_api_type(obj):
     return 'instance'
 
 
-class DirectObjectAccess(object):
+class DirectObjectAccess:
     def __init__(self, inference_state, obj):
         self._inference_state = inference_state
         self._obj = obj
diff --git a/jedi/inference/compiled/subprocess/__init__.py b/jedi/inference/compiled/subprocess/__init__.py
index c189c4f3..0795de30 100644
--- a/jedi/inference/compiled/subprocess/__init__.py
+++ b/jedi/inference/compiled/subprocess/__init__.py
@@ -81,7 +81,7 @@ def _cleanup_process(process, thread):
             pass
 
 
-class _InferenceStateProcess(object):
+class _InferenceStateProcess:
     def __init__(self, inference_state):
         self._inference_state_weakref = weakref.ref(inference_state)
         self._inference_state_id = id(inference_state)
@@ -162,7 +162,7 @@ class InferenceStateSubprocess(_InferenceStateProcess):
             self._compiled_subprocess.delete_inference_state(self._inference_state_id)
 
 
-class CompiledSubprocess(object):
+class CompiledSubprocess:
     is_crashed = False
 
     def __init__(self, executable, env_vars=None):
@@ -280,7 +280,7 @@ class CompiledSubprocess(object):
         self._inference_state_deletion_queue.append(inference_state_id)
 
 
-class Listener(object):
+class Listener:
     def __init__(self):
         self._inference_states = {}
         # TODO refactor so we don't need to process anymore just handle
@@ -346,7 +346,7 @@ class Listener(object):
             pickle_dump(result, stdout, PICKLE_PROTOCOL)
 
 
-class AccessHandle(object):
+class AccessHandle:
     def __init__(self, subprocess, access, id_):
         self.access = access
         self._subprocess = subprocess
diff --git a/jedi/inference/compiled/subprocess/functions.py b/jedi/inference/compiled/subprocess/functions.py
index 2d3ab607..9aa1cb2e 100644
--- a/jedi/inference/compiled/subprocess/functions.py
+++ b/jedi/inference/compiled/subprocess/functions.py
@@ -229,7 +229,7 @@ def _get_source(loader, fullname):
                           name=fullname)
 
 
-class ImplicitNSInfo(object):
+class ImplicitNSInfo:
     """Stores information returned from an implicit namespace spec"""
     def __init__(self, name, paths):
         self.name = name
diff --git a/jedi/inference/compiled/value.py b/jedi/inference/compiled/value.py
index 6802e43d..1b34b123 100644
--- a/jedi/inference/compiled/value.py
+++ b/jedi/inference/compiled/value.py
@@ -22,7 +22,7 @@ from jedi.inference.signature import BuiltinSignature
 from jedi.inference.context import CompiledContext, CompiledModuleContext
 
 
-class CheckAttribute(object):
+class CheckAttribute:
     """Raises :exc:`AttributeError` if the attribute X is not available."""
     def __init__(self, check_name=None):
         # Remove the py in front of e.g. py__call__.
diff --git a/jedi/inference/context.py b/jedi/inference/context.py
index 951f3bf6..cbbce0c7 100644
--- a/jedi/inference/context.py
+++ b/jedi/inference/context.py
@@ -13,7 +13,7 @@ from jedi import debug
 from jedi import parser_utils
 
 
-class AbstractContext(object):
+class AbstractContext:
     # Must be defined: inference_state and tree_node and parent_context as an attribute/property
 
     def __init__(self, inference_state):
@@ -216,7 +216,7 @@ class ValueContext(AbstractContext):
         return '%s(%s)' % (self.__class__.__name__, self._value)
 
 
-class TreeContextMixin(object):
+class TreeContextMixin:
     def infer_node(self, node):
         from jedi.inference.syntax_tree import infer_node
         return infer_node(self, node)
diff --git a/jedi/inference/filters.py b/jedi/inference/filters.py
index 9bdc4c23..2451f468 100644
--- a/jedi/inference/filters.py
+++ b/jedi/inference/filters.py
@@ -21,7 +21,7 @@ _definition_name_cache: MutableMapping[UsedNamesMapping, List[Name]]
 _definition_name_cache = weakref.WeakKeyDictionary()
 
 
-class AbstractFilter(object):
+class AbstractFilter:
     _until_position = None
 
     def _filter(self, names):
@@ -38,7 +38,7 @@ class AbstractFilter(object):
         raise NotImplementedError
 
 
-class FilterWrapper(object):
+class FilterWrapper:
     name_wrapper_class: Type[NameWrapper]
 
     def __init__(self, wrapped_filter):
@@ -232,7 +232,7 @@ class DictFilter(AbstractFilter):
         return '<%s: for {%s}>' % (self.__class__.__name__, keys)
 
 
-class MergedFilter(object):
+class MergedFilter:
     def __init__(self, *filters):
         self._filters = filters
 
@@ -323,7 +323,7 @@ class _OverwriteMeta(type):
         cls.overwritten_methods = base_dct
 
 
-class _AttributeOverwriteMixin(object):
+class _AttributeOverwriteMixin:
     def get_filters(self, *args, **kwargs):
         yield SpecialMethodFilter(self, self.overwritten_methods, self._wrapped_value)
         yield from self._wrapped_value.get_filters(*args, **kwargs)
diff --git a/jedi/inference/flow_analysis.py b/jedi/inference/flow_analysis.py
index be67f23c..89bfe578 100644
--- a/jedi/inference/flow_analysis.py
+++ b/jedi/inference/flow_analysis.py
@@ -5,7 +5,7 @@ from jedi.inference.recursion import execution_allowed
 from jedi.inference.helpers import is_big_annoying_library
 
 
-class Status(object):
+class Status:
     lookup_table: Dict[Optional[bool], 'Status'] = {}
 
     def __init__(self, value: Optional[bool], name: str) -> None:
diff --git a/jedi/inference/gradual/base.py b/jedi/inference/gradual/base.py
index 22c204a2..fb4740d3 100644
--- a/jedi/inference/gradual/base.py
+++ b/jedi/inference/gradual/base.py
@@ -37,7 +37,7 @@ class _BoundTypeVarName(AbstractNameDefinition):
         return '<%s %s -> %s>' % (self.__class__.__name__, self.py__name__(), self._value_set)
 
 
-class _TypeVarFilter(object):
+class _TypeVarFilter:
     """
     A filter for all given variables in a class.
 
@@ -246,7 +246,7 @@ class GenericClass(DefineGenericBaseClass, ClassMixin):
         return type_var_dict
 
 
-class _LazyGenericBaseClass(object):
+class _LazyGenericBaseClass:
     def __init__(self, class_value, lazy_base_class, generics_manager):
         self._class_value = class_value
         self._lazy_base_class = lazy_base_class
diff --git a/jedi/inference/gradual/generics.py b/jedi/inference/gradual/generics.py
index 6bd6aa63..f4a5ae9c 100644
--- a/jedi/inference/gradual/generics.py
+++ b/jedi/inference/gradual/generics.py
@@ -23,7 +23,7 @@ def _resolve_forward_references(context, value_set):
             yield value
 
 
-class _AbstractGenericManager(object):
+class _AbstractGenericManager:
     def get_index_and_execute(self, index):
         try:
             return self[index].execute_annotation()
diff --git a/jedi/inference/imports.py b/jedi/inference/imports.py
index 8de3fe84..5ae5819f 100644
--- a/jedi/inference/imports.py
+++ b/jedi/inference/imports.py
@@ -32,7 +32,7 @@ from jedi.inference.compiled.subprocess.functions import ImplicitNSInfo
 from jedi.plugins import plugin_manager
 
 
-class ModuleCache(object):
+class ModuleCache:
     def __init__(self):
         self._name_cache = {}
 
@@ -150,7 +150,7 @@ def _level_to_base_import_path(project_path, directory, level):
             return None, directory
 
 
-class Importer(object):
+class Importer:
     def __init__(self, inference_state, import_path, module_context, level=0):
         """
         An implementation similar to ``__import__``. Use `follow`
diff --git a/jedi/inference/lazy_value.py b/jedi/inference/lazy_value.py
index 0ece8690..b149f21e 100644
--- a/jedi/inference/lazy_value.py
+++ b/jedi/inference/lazy_value.py
@@ -2,7 +2,7 @@ from jedi.inference.base_value import ValueSet, NO_VALUES
 from jedi.common import monkeypatch
 
 
-class AbstractLazyValue(object):
+class AbstractLazyValue:
     def __init__(self, data, min=1, max=1):
         self.data = data
         self.min = min
diff --git a/jedi/inference/names.py b/jedi/inference/names.py
index 12550982..38be6f22 100644
--- a/jedi/inference/names.py
+++ b/jedi/inference/names.py
@@ -24,7 +24,7 @@ def _merge_name_docs(names):
     return doc
 
 
-class AbstractNameDefinition(object):
+class AbstractNameDefinition:
     start_pos: Optional[Tuple[int, int]] = None
     string_name: str
     parent_context = None
@@ -224,7 +224,7 @@ class AbstractTreeName(AbstractNameDefinition):
         return self.tree_name.start_pos
 
 
-class ValueNameMixin(object):
+class ValueNameMixin:
     def infer(self):
         return ValueSet([self._value])
 
@@ -347,7 +347,7 @@ class TreeNameDefinition(AbstractTreeName):
         return ''
 
 
-class _ParamMixin(object):
+class _ParamMixin:
     def maybe_positional_argument(self, include_star=True):
         options = [Parameter.POSITIONAL_ONLY, Parameter.POSITIONAL_OR_KEYWORD]
         if include_star:
@@ -605,7 +605,7 @@ class SubModuleName(ImportName):
     _level = 1
 
 
-class NameWrapper(object):
+class NameWrapper:
     def __init__(self, wrapped_name):
         self._wrapped_name = wrapped_name
 
@@ -616,7 +616,7 @@ class NameWrapper(object):
         return '%s(%s)' % (self.__class__.__name__, self._wrapped_name)
 
 
-class StubNameMixin(object):
+class StubNameMixin:
     def py__doc__(self):
         from jedi.inference.gradual.conversion import convert_names
         # Stubs are not complicated and we can just follow simple statements
diff --git a/jedi/inference/recursion.py b/jedi/inference/recursion.py
index a0897fa8..a2f99c52 100644
--- a/jedi/inference/recursion.py
+++ b/jedi/inference/recursion.py
@@ -50,7 +50,7 @@ A function may not be executed more than this number of times recursively.
 """
 
 
-class RecursionDetector(object):
+class RecursionDetector:
     def __init__(self):
         self.pushed_nodes = []
 
@@ -92,7 +92,7 @@ def execution_recursion_decorator(default=NO_VALUES):
     return decorator
 
 
-class ExecutionRecursionDetector(object):
+class ExecutionRecursionDetector:
     """
     Catches recursions of executions.
     """
diff --git a/jedi/inference/signature.py b/jedi/inference/signature.py
index 5f203f79..565a269b 100644
--- a/jedi/inference/signature.py
+++ b/jedi/inference/signature.py
@@ -5,7 +5,7 @@ from jedi import debug
 from jedi import parser_utils
 
 
-class _SignatureMixin(object):
+class _SignatureMixin:
     def to_string(self):
         def param_strings():
             is_positional = False
diff --git a/jedi/inference/utils.py b/jedi/inference/utils.py
index e4c66537..ab10bcd9 100644
--- a/jedi/inference/utils.py
+++ b/jedi/inference/utils.py
@@ -70,7 +70,7 @@ def reraise_uncaught(func):
     return wrapper
 
 
-class PushBackIterator(object):
+class PushBackIterator:
     def __init__(self, iterator):
         self.pushes = []
         self.iterator = iterator
diff --git a/jedi/inference/value/function.py b/jedi/inference/value/function.py
index 967ee6c0..2471a065 100644
--- a/jedi/inference/value/function.py
+++ b/jedi/inference/value/function.py
@@ -53,7 +53,7 @@ class FunctionAndClassBase(TreeValue):
             return None
 
 
-class FunctionMixin(object):
+class FunctionMixin:
     api_type = 'function'
 
     def get_filters(self, origin_scope=None):
diff --git a/jedi/inference/value/iterable.py b/jedi/inference/value/iterable.py
index 18611a56..2f970fe8 100644
--- a/jedi/inference/value/iterable.py
+++ b/jedi/inference/value/iterable.py
@@ -19,7 +19,7 @@ from jedi.inference.context import CompForContext
 from jedi.inference.value.dynamic_arrays import check_array_additions
 
 
-class IterableMixin(object):
+class IterableMixin:
     def py__next__(self, contextualized_node=None):
         return self.py__iter__(contextualized_node)
 
@@ -127,7 +127,7 @@ def comprehension_from_atom(inference_state, value, atom):
     )
 
 
-class ComprehensionMixin(object):
+class ComprehensionMixin:
     @inference_state_method_cache()
     def _get_comp_for_context(self, parent_context, comp_for):
         return CompForContext(parent_context, comp_for)
@@ -175,7 +175,7 @@ class ComprehensionMixin(object):
         return "<%s of %s>" % (type(self).__name__, self._sync_comp_for_node)
 
 
-class _DictMixin(object):
+class _DictMixin:
     def _get_generics(self):
         return tuple(c_set.py__class__() for c_set in self.get_mapping_item_values())
 
@@ -247,7 +247,7 @@ class GeneratorComprehension(_BaseComprehension, GeneratorBase):
     pass
 
 
-class _DictKeyMixin(object):
+class _DictKeyMixin:
     # TODO merge with _DictMixin?
     def get_mapping_item_values(self):
         return self._dict_keys(), self._dict_values()
diff --git a/jedi/inference/value/klass.py b/jedi/inference/value/klass.py
index 79d070ba..0135624a 100644
--- a/jedi/inference/value/klass.py
+++ b/jedi/inference/value/klass.py
@@ -142,7 +142,7 @@ class ClassFilter(ParserTreeFilter):
         return [name for name in names if self._access_possible(name)]
 
 
-class ClassMixin(object):
+class ClassMixin:
     def is_class(self):
         return True
 
diff --git a/jedi/inference/value/module.py b/jedi/inference/value/module.py
index ac6b2c71..a5073b0e 100644
--- a/jedi/inference/value/module.py
+++ b/jedi/inference/value/module.py
@@ -34,7 +34,7 @@ class _ModuleAttributeName(AbstractNameDefinition):
         return compiled.get_string_value_set(self.parent_context.inference_state)
 
 
-class SubModuleDictMixin(object):
+class SubModuleDictMixin:
     @inference_state_method_cache()
     def sub_modules_dict(self):
         """
diff --git a/jedi/plugins/__init__.py b/jedi/plugins/__init__.py
index 23588bd4..8067676d 100644
--- a/jedi/plugins/__init__.py
+++ b/jedi/plugins/__init__.py
@@ -1,7 +1,7 @@
 from functools import wraps
 
 
-class _PluginManager(object):
+class _PluginManager:
     def __init__(self):
         self._registered_plugins = []
         self._cached_base_callbacks = {}
diff --git a/jedi/utils.py b/jedi/utils.py
index d70cbd16..b7e1c1a8 100644
--- a/jedi/utils.py
+++ b/jedi/utils.py
@@ -65,7 +65,7 @@ def setup_readline(namespace_module=__main__, fuzzy=False):
             level=logging.DEBUG
         )
 
-    class JediRL(object):
+    class JediRL:
         def complete(self, text, state):
             """
             This complete stuff is pretty weird, a generator would make