diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4c8da4aa..823e8152 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
-  - repo: https://github.com/myint/autoflake
-    rev: v1.4
+  - repo: https://github.com/PyCQA/autoflake
+    rev: v2.0.0
     hooks:
       - id: autoflake
         args: ['--in-place', '--remove-all-unused-imports', '--remove-unused-variable']
@@ -12,7 +12,7 @@ repos:
         args: ["--profile", "black", "--filter-files"]
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.1.0
+    rev: v4.4.0
     hooks:
       - id: trailing-whitespace
         exclude: ^docs/.*|.*.md
@@ -20,7 +20,7 @@ repos:
         exclude: ^docs/.*|.*.md
 
   - repo: https://github.com/psf/black
-    rev: 22.1.0
+    rev: 22.10.0
     hooks:
       - id: black
         language_version: python3
diff --git a/model_subscription/decorators.py b/model_subscription/decorators.py
index 0bc91fe4..afa1078e 100644
--- a/model_subscription/decorators.py
+++ b/model_subscription/decorators.py
@@ -1,11 +1,8 @@
 from functools import partial
-from typing import Any, Callable, Optional, Type
 
 from django.conf import settings
 
 from model_subscription.constants import OperationType
-from model_subscription.mixin import SubscriptionModelMixin
-from model_subscription.types import T
 
 __all__ = [
     "subscribe",
diff --git a/model_subscription/observers.py b/model_subscription/observers.py
index bd351de3..a7a0182b 100644
--- a/model_subscription/observers.py
+++ b/model_subscription/observers.py
@@ -1,8 +1,6 @@
 import threading
 from abc import ABC, abstractmethod
-from typing import Callable, Dict, List, NoReturn, Tuple, Union, overload
-
-from django.db import models
+from typing import overload
 
 from model_subscription.constants import OperationType
 
diff --git a/model_subscription/subscriber.py b/model_subscription/subscriber.py
index 18cf4a58..433e74ca 100644
--- a/model_subscription/subscriber.py
+++ b/model_subscription/subscriber.py
@@ -1,8 +1,6 @@
 from abc import ABC, abstractmethod
-from typing import Any, Callable, FrozenSet, List, Optional, Tuple, Type, Union
 
 from django.conf import settings
-from django.db import models
 from django.utils.module_loading import autodiscover_modules
 
 from model_subscription.constants import OperationType
@@ -12,7 +10,6 @@
     BulkUpdateObserver,
     CreateObserver,
     DeleteObserver,
-    Observer,
     UpdateObserver,
 )