diff --git a/pdm.lock b/pdm.lock
index 1bf8ac5..86261eb 100644
--- a/pdm.lock
+++ b/pdm.lock
@@ -2,10 +2,10 @@
 # It is not intended for manual editing.
 
 [metadata]
-groups = ["default", "format", "test"]
+groups = ["default", "dev", "test"]
 strategy = ["inherit_metadata"]
 lock_version = "4.5.0"
-content_hash = "sha256:712f4f89a060a0f0815eb6d55c8148cbdd2d9fb04c48764b70ffaa5e76fe2d4a"
+content_hash = "sha256:24c09a22ef5d3658a7432a56752e77bb7f1dccd21286301faf237ddedd41af75"
 
 [[metadata.targets]]
 requires_python = ">=3.9"
@@ -29,7 +29,7 @@ name = "black"
 version = "24.4.2"
 requires_python = ">=3.8"
 summary = "The uncompromising code formatter."
-groups = ["format"]
+groups = ["dev"]
 dependencies = [
     "click>=8.0.0",
     "mypy-extensions>=0.4.3",
@@ -147,7 +147,7 @@ name = "click"
 version = "8.1.7"
 requires_python = ">=3.7"
 summary = "Composable command line interface toolkit"
-groups = ["default", "format"]
+groups = ["default", "dev"]
 dependencies = [
     "colorama; platform_system == \"Windows\"",
     "importlib-metadata; python_version < \"3.8\"",
@@ -162,7 +162,7 @@ name = "colorama"
 version = "0.4.6"
 requires_python = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
 summary = "Cross-platform colored terminal text."
-groups = ["default", "format", "test"]
+groups = ["default", "dev", "test"]
 marker = "sys_platform == \"win32\" or platform_system == \"Windows\""
 files = [
     {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
@@ -331,7 +331,7 @@ name = "mypy-extensions"
 version = "1.0.0"
 requires_python = ">=3.5"
 summary = "Type system extensions for programs checked with the mypy type checker."
-groups = ["format"]
+groups = ["dev"]
 files = [
     {file = "mypy_extensions-1.0.0-py3-none-any.whl", hash = "sha256:4392f6c0eb8a5668a69e23d168ffa70f0be9ccfd32b5cc2d26a34ae5b844552d"},
     {file = "mypy_extensions-1.0.0.tar.gz", hash = "sha256:75dbf8955dc00442a438fc4d0666508a9a97b6bd41aa2f0ffe9d2f2725af0782"},
@@ -342,7 +342,7 @@ name = "packaging"
 version = "24.1"
 requires_python = ">=3.8"
 summary = "Core utilities for Python packages"
-groups = ["format", "test"]
+groups = ["dev", "test"]
 files = [
     {file = "packaging-24.1-py3-none-any.whl", hash = "sha256:5b8f2217dbdbd2f7f384c41c628544e6d52f2d0f53c6d0c3ea61aa5d1d7ff124"},
     {file = "packaging-24.1.tar.gz", hash = "sha256:026ed72c8ed3fcce5bf8950572258698927fd1dbda10a5e981cdf0ac37f4f002"},
@@ -353,7 +353,7 @@ name = "pathspec"
 version = "0.12.1"
 requires_python = ">=3.8"
 summary = "Utility library for gitignore style pattern matching of file paths."
-groups = ["format"]
+groups = ["dev"]
 files = [
     {file = "pathspec-0.12.1-py3-none-any.whl", hash = "sha256:a0d503e138a4c123b27490a4f7beda6a01c6f288df0e4a8b79c7eb0dc7b4cc08"},
     {file = "pathspec-0.12.1.tar.gz", hash = "sha256:a482d51503a1ab33b1c67a6c3813a26953dbdc71c31dacaef9a838c4e29f5712"},
@@ -364,7 +364,7 @@ name = "platformdirs"
 version = "4.2.2"
 requires_python = ">=3.8"
 summary = "A small Python package for determining appropriate platform-specific dirs, e.g. a `user data dir`."
-groups = ["format"]
+groups = ["dev"]
 files = [
     {file = "platformdirs-4.2.2-py3-none-any.whl", hash = "sha256:2d7a1657e36a80ea911db832a8a6ece5ee53d8de21edd5cc5879af6530b1bfee"},
     {file = "platformdirs-4.2.2.tar.gz", hash = "sha256:38b7b51f512eed9e84a22788b4bce1de17c0adb134d6becb09836e37d8654cd3"},
@@ -694,13 +694,13 @@ files = [
 
 [[package]]
 name = "setuptools"
-version = "71.1.0"
+version = "72.0.0"
 requires_python = ">=3.8"
 summary = "Easily download, build, install, upgrade, and uninstall Python packages"
 groups = ["test"]
 files = [
-    {file = "setuptools-71.1.0-py3-none-any.whl", hash = "sha256:33874fdc59b3188304b2e7c80d9029097ea31627180896fb549c578ceb8a0855"},
-    {file = "setuptools-71.1.0.tar.gz", hash = "sha256:032d42ee9fb536e33087fb66cac5f840eb9391ed05637b3f2a76a7c8fb477936"},
+    {file = "setuptools-72.0.0-py3-none-any.whl", hash = "sha256:98b4d786a12fadd34eabf69e8d014b84e5fc655981e4ff419994700434ace132"},
+    {file = "setuptools-72.0.0.tar.gz", hash = "sha256:5a0d9c6a2f332881a0153f629d8000118efd33255cfa802757924c53312c76da"},
 ]
 
 [[package]]
@@ -728,7 +728,7 @@ name = "tomli"
 version = "2.0.1"
 requires_python = ">=3.7"
 summary = "A lil' TOML parser"
-groups = ["format", "test"]
+groups = ["dev", "test"]
 marker = "python_version < \"3.11\""
 files = [
     {file = "tomli-2.0.1-py3-none-any.whl", hash = "sha256:939de3e7a6161af0c887ef91b7d41a53e7c5a1ca976325f429cb46ea9bc30ecc"},
@@ -740,7 +740,7 @@ name = "typing-extensions"
 version = "4.12.2"
 requires_python = ">=3.8"
 summary = "Backported and Experimental Type Hints for Python 3.8+"
-groups = ["format"]
+groups = ["dev"]
 marker = "python_version < \"3.11\""
 files = [
     {file = "typing_extensions-4.12.2-py3-none-any.whl", hash = "sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d"},
diff --git a/pyproject.toml b/pyproject.toml
index 6e278c5..2bdac23 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,9 @@ Repository = "https://github.com/asyrjasalo/RESTinstance"
 distribution = true
 
 [tool.pdm.dev-dependencies]
-format = ["black"]
+dev = [
+    "black"
+]
 test = [
     "pytest",
     "pytest-clarity",
@@ -85,20 +87,6 @@ exclude = '''
 testpaths = "test"
 addopts = "--cov --spec --instafail --diff-type=auto"
 
-[tool.flake8]
-exclude = [
-    ".git",
-    ".venv",
-    "dist",
-    "docs",
-    "node_modules",
-    "results",
-    "testapi",
-    "__pycache__",
-]
-max-complexity = 15
-max-line-length = 80
-
 [tool.mypy]
 disallow_untyped_defs = true
 ignore_missing_imports = true