diff --git a/.flake8 b/.flake8
deleted file mode 100644
index 3d7becca..00000000
--- a/.flake8
+++ /dev/null
@@ -1,12 +0,0 @@
-[flake8]
-exclude = .direnv, .env, .venv, venv
-ignore =
-    # whitespace before ':' (conflicts with Black)
-    E203
-    # line too long (probably right, but if Black let it go, Flake8 should too)
-    E501
-    # line break before binary operator (conflicts with Black)
-    W503
-    # multiple statements on one line (conflicts with Black)
-    E704
-max_line_length = 88
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6ecd715e..01a5474c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -13,15 +13,10 @@ repos:
     hooks:
       - id: black
 
-  - repo: https://github.com/PyCQA/flake8
-    rev: 7.0.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.4.4
     hooks:
-      - id: flake8
-
-  - repo: https://github.com/timothycrosley/isort
-    rev: 5.13.2
-    hooks:
-      - id: isort
+      - id: ruff
 
   - repo: https://github.com/asottile/pyupgrade
     rev: v3.15.2
diff --git a/cbv/importer/importers.py b/cbv/importer/importers.py
index 9e77120f..28d69180 100644
--- a/cbv/importer/importers.py
+++ b/cbv/importer/importers.py
@@ -111,7 +111,7 @@ def _handle_class_on_module(
         if inspect.getsourcefile(member) != inspect.getsourcefile(parent):
             return None
 
-        if issubclass(member, (Exception, Warning)):
+        if issubclass(member, Exception | Warning):
             return None
 
         yield Klass(
diff --git a/pyproject.toml b/pyproject.toml
index a3a18464..ea805622 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,3 +38,25 @@ DJANGO_SETTINGS_MODULE = "core.settings"
 python_files = [
   "test_*.py",
 ]
+
+[tool.ruff]
+extend-exclude = [
+    ".env",
+]
+target-version = "py310"
+
+[tool.ruff.lint]
+extend-select = [
+  "A",  # flake8-builtins
+  "I",  # isort
+  "INP",  # flake8-no-pep420
+  "ISC",  # flake8-implicit-str-concat
+  "UP",  # pyupgrade
+  "W",  # pycodestyle warning
+]
+extend-ignore = [
+  "E731",  # allow lambda assignment
+]
+
+[tool.ruff.lint.isort]
+lines-after-imports = 2
diff --git a/tests/factories.py b/tests/factories.py
index 22a701bf..3ac6ffac 100644
--- a/tests/factories.py
+++ b/tests/factories.py
@@ -15,7 +15,7 @@ class Meta:
         model = Module
 
     project_version = factory.SubFactory(ProjectVersionFactory)
-    name = factory.Sequence("module{}".format)
+    name = factory.Sequence(lambda n: f"module{n}")
 
 
 class KlassFactory(factory.django.DjangoModelFactory):
@@ -25,11 +25,7 @@ class Meta:
     module = factory.SubFactory(ModuleFactory)
     name = factory.Sequence("klass{}".format)
     line_number = 1
-    import_path = factory.LazyAttribute(
-        lambda a: "Django.{module}".format(
-            module=a.module.name,
-        )
-    )
+    import_path = factory.LazyAttribute(lambda a: f"Django.{a.module.name}")
 
 
 class InheritanceFactory(factory.django.DjangoModelFactory):