diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecb7f0a..a78c1c1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ on:
       - master
 
 env:
-  POETRY_VERSION: "1.3.0"
+  POETRY_VERSION: "1.4.2"
 
 jobs:
   cs:
diff --git a/poetry.lock b/poetry.lock
index 27f753b..4a4885f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,9 +1,10 @@
-# This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
 version = "0.7.13"
 description = "A configurable sidebar-enabled Sphinx theme"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -15,6 +16,7 @@ files = [
 name = "babel"
 version = "2.13.0"
 description = "Internationalization utilities"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -32,6 +34,7 @@ dev = ["freezegun (>=1.0,<2.0)", "pytest (>=6.0)", "pytest-cov"]
 name = "black"
 version = "23.9.1"
 description = "The uncompromising code formatter."
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -78,6 +81,7 @@ uvloop = ["uvloop (>=0.15.2)"]
 name = "certifi"
 version = "2023.7.22"
 description = "Python package for providing Mozilla's CA Bundle."
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -89,6 +93,7 @@ files = [
 name = "cfgv"
 version = "3.4.0"
 description = "Validate configuration and produce human readable error messages."
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -100,6 +105,7 @@ files = [
 name = "charset-normalizer"
 version = "3.3.0"
 description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
+category = "dev"
 optional = false
 python-versions = ">=3.7.0"
 files = [
@@ -199,6 +205,7 @@ files = [
 name = "click"
 version = "8.1.7"
 description = "Composable command line interface toolkit"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -213,6 +220,7 @@ colorama = {version = "*", markers = "platform_system == \"Windows\""}
 name = "colorama"
 version = "0.4.6"
 description = "Cross-platform colored terminal text."
+category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
 files = [
@@ -224,6 +232,7 @@ files = [
 name = "coverage"
 version = "7.3.2"
 description = "Code coverage measurement for Python"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -291,6 +300,7 @@ toml = ["tomli"]
 name = "distlib"
 version = "0.3.7"
 description = "Distribution utilities"
+category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -302,6 +312,7 @@ files = [
 name = "docutils"
 version = "0.18.1"
 description = "Docutils -- Python Documentation Utilities"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 files = [
@@ -313,6 +324,7 @@ files = [
 name = "dulwich"
 version = "0.21.6"
 description = "Python Git Library"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -387,6 +399,7 @@ pgp = ["gpg"]
 name = "exceptiongroup"
 version = "1.1.3"
 description = "Backport of PEP 654 (exception groups)"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -401,6 +414,7 @@ test = ["pytest (>=6)"]
 name = "filelock"
 version = "3.12.4"
 description = "A platform independent file lock."
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -417,6 +431,7 @@ typing = ["typing-extensions (>=4.7.1)"]
 name = "identify"
 version = "2.5.30"
 description = "File identification library for Python"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -431,6 +446,7 @@ license = ["ukkonen"]
 name = "idna"
 version = "3.4"
 description = "Internationalized Domain Names in Applications (IDNA)"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -442,6 +458,7 @@ files = [
 name = "imagesize"
 version = "1.4.1"
 description = "Getting image size from png/jpeg/jpeg2000/gif file"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 files = [
@@ -453,6 +470,7 @@ files = [
 name = "importlib-metadata"
 version = "6.8.0"
 description = "Read metadata from Python packages"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -472,6 +490,7 @@ testing = ["flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs
 name = "iniconfig"
 version = "2.0.0"
 description = "brain-dead simple config-ini parsing"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -483,6 +502,7 @@ files = [
 name = "jinja2"
 version = "3.1.2"
 description = "A very fast and expressive template engine."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -500,6 +520,7 @@ i18n = ["Babel (>=2.7)"]
 name = "markupsafe"
 version = "2.1.3"
 description = "Safely add untrusted strings to HTML/XML markup."
+category = "main"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -569,6 +590,7 @@ files = [
 name = "mypy"
 version = "0.971"
 description = "Optional static typing for Python"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -611,6 +633,7 @@ reports = ["lxml"]
 name = "mypy-extensions"
 version = "1.0.0"
 description = "Type system extensions for programs checked with the mypy type checker."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -622,6 +645,7 @@ files = [
 name = "nodeenv"
 version = "1.8.0"
 description = "Node.js virtual environment builder"
+category = "dev"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*"
 files = [
@@ -636,6 +660,7 @@ setuptools = "*"
 name = "packaging"
 version = "23.2"
 description = "Core utilities for Python packages"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -647,6 +672,7 @@ files = [
 name = "pathspec"
 version = "0.11.2"
 description = "Utility library for gitignore style pattern matching of file paths."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -658,6 +684,7 @@ files = [
 name = "pbr"
 version = "5.11.1"
 description = "Python Build Reasonableness"
+category = "dev"
 optional = false
 python-versions = ">=2.6"
 files = [
@@ -669,6 +696,7 @@ files = [
 name = "platformdirs"
 version = "3.11.0"
 description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -684,6 +712,7 @@ test = ["appdirs (==1.4.4)", "covdefaults (>=2.3)", "pytest (>=7.4)", "pytest-co
 name = "pluggy"
 version = "1.3.0"
 description = "plugin and hook calling mechanisms for python"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -699,6 +728,7 @@ testing = ["pytest", "pytest-benchmark"]
 name = "pre-commit"
 version = "2.21.0"
 description = "A framework for managing and maintaining multi-language pre-commit hooks."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -717,6 +747,7 @@ virtualenv = ">=20.10.0"
 name = "pygments"
 version = "2.16.1"
 description = "Pygments is a syntax highlighting package written in Python."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -731,6 +762,7 @@ plugins = ["importlib-metadata"]
 name = "pytest"
 version = "7.4.2"
 description = "pytest: simple powerful testing with Python"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -753,6 +785,7 @@ testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "no
 name = "pytest-cov"
 version = "4.1.0"
 description = "Pytest plugin for measuring coverage."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -771,6 +804,7 @@ testing = ["fields", "hunter", "process-tests", "pytest-xdist", "six", "virtuale
 name = "pytz"
 version = "2023.3.post1"
 description = "World timezone definitions, modern and historical"
+category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -782,6 +816,7 @@ files = [
 name = "pyyaml"
 version = "6.0.1"
 description = "YAML parser and emitter for Python"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -841,6 +876,7 @@ files = [
 name = "reno"
 version = "3.5.0"
 description = "RElease NOtes manager"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -862,6 +898,7 @@ test = ["coverage (>=4.0,!=4.4)", "openstackdocstheme (>=2.2.1)", "python-subuni
 name = "requests"
 version = "2.31.0"
 description = "Python HTTP for Humans."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -883,6 +920,7 @@ use-chardet-on-py3 = ["chardet (>=3.0.2,<6)"]
 name = "setuptools"
 version = "68.2.2"
 description = "Easily download, build, install, upgrade, and uninstall Python packages"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -899,6 +937,7 @@ testing-integration = ["build[virtualenv] (>=1.0.3)", "filelock (>=3.4.0)", "jar
 name = "snowballstemmer"
 version = "2.2.0"
 description = "This package provides 29 stemmers for 28 languages generated from Snowball algorithms."
+category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -910,6 +949,7 @@ files = [
 name = "sphinx"
 version = "5.3.0"
 description = "Python documentation generator"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 files = [
@@ -945,6 +985,7 @@ test = ["cython", "html5lib", "pytest (>=4.6)", "typed_ast"]
 name = "sphinx-rtd-theme"
 version = "1.3.0"
 description = "Read the Docs theme for Sphinx"
+category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,>=2.7"
 files = [
@@ -964,6 +1005,7 @@ dev = ["bump2version", "sphinxcontrib-httpdomain", "transifex-client", "wheel"]
 name = "sphinxcontrib-applehelp"
 version = "1.0.4"
 description = "sphinxcontrib-applehelp is a Sphinx extension which outputs Apple help books"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -979,6 +1021,7 @@ test = ["pytest"]
 name = "sphinxcontrib-devhelp"
 version = "1.0.2"
 description = "sphinxcontrib-devhelp is a sphinx extension which outputs Devhelp document."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -994,6 +1037,7 @@ test = ["pytest"]
 name = "sphinxcontrib-htmlhelp"
 version = "2.0.1"
 description = "sphinxcontrib-htmlhelp is a sphinx extension which renders HTML help files"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -1009,6 +1053,7 @@ test = ["html5lib", "pytest"]
 name = "sphinxcontrib-jquery"
 version = "4.1"
 description = "Extension to include jQuery on newer Sphinx releases"
+category = "dev"
 optional = false
 python-versions = ">=2.7"
 files = [
@@ -1023,6 +1068,7 @@ Sphinx = ">=1.8"
 name = "sphinxcontrib-jsmath"
 version = "1.0.1"
 description = "A sphinx extension which renders display math in HTML via JavaScript"
+category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -1037,6 +1083,7 @@ test = ["flake8", "mypy", "pytest"]
 name = "sphinxcontrib-qthelp"
 version = "1.0.3"
 description = "sphinxcontrib-qthelp is a sphinx extension which outputs QtHelp document."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -1052,6 +1099,7 @@ test = ["pytest"]
 name = "sphinxcontrib-serializinghtml"
 version = "1.1.5"
 description = "sphinxcontrib-serializinghtml is a sphinx extension which outputs \"serialized\" HTML files (json and pickle)."
+category = "dev"
 optional = false
 python-versions = ">=3.5"
 files = [
@@ -1067,6 +1115,7 @@ test = ["pytest"]
 name = "toml"
 version = "0.10.2"
 description = "Python Library for Tom's Obvious, Minimal Language"
+category = "dev"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 files = [
@@ -1078,6 +1127,7 @@ files = [
 name = "tomli"
 version = "2.0.1"
 description = "A lil' TOML parser"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1089,6 +1139,7 @@ files = [
 name = "types-requests"
 version = "2.31.0.8"
 description = "Typing stubs for requests"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1103,6 +1154,7 @@ urllib3 = ">=2"
 name = "types-toml"
 version = "0.10.8.7"
 description = "Typing stubs for toml"
+category = "dev"
 optional = false
 python-versions = "*"
 files = [
@@ -1114,6 +1166,7 @@ files = [
 name = "typing-extensions"
 version = "4.8.0"
 description = "Backported and Experimental Type Hints for Python 3.8+"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -1125,6 +1178,7 @@ files = [
 name = "urllib3"
 version = "2.0.6"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1142,6 +1196,7 @@ zstd = ["zstandard (>=0.18.0)"]
 name = "virtualenv"
 version = "20.24.5"
 description = "Virtual Python Environment builder"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 files = [
@@ -1162,6 +1217,7 @@ test = ["covdefaults (>=2.3)", "coverage (>=7.2.7)", "coverage-enable-subprocess
 name = "werkzeug"
 version = "3.0.0"
 description = "The comprehensive WSGI web application library."
+category = "main"
 optional = false
 python-versions = ">=3.8"
 files = [
@@ -1179,6 +1235,7 @@ watchdog = ["watchdog (>=2.3)"]
 name = "zipp"
 version = "3.17.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
+category = "dev"
 optional = false
 python-versions = ">=3.8"
 files = [
diff --git a/tests/test_release.py b/tests/test_release.py
index e3bc6b1..caeac76 100644
--- a/tests/test_release.py
+++ b/tests/test_release.py
@@ -19,6 +19,7 @@
 
 NAME = "pytest-httpserver"
 NAME_UNDERSCORE = NAME.replace("-", "_")
+PY_MAX_VERSION = (3, 12)
 
 
 @pytest.fixture(scope="session")
@@ -120,20 +121,20 @@ def test_python_version(build: Build, pyproject):
     pyproject_meta = pyproject["tool"]["poetry"]
     wheel_meta = build.wheel.get_meta(version=pyproject_meta["version"])
     python_dependency = pyproject_meta["dependencies"]["python"]
-    m = re.match(r">=(\d+\.\d+),<(\d+\.\d+)", python_dependency)
+    m = re.match(r">=(\d+\.\d+)", python_dependency)
     if m:
-        min_version, max_version = m.groups()
+        min_version, *_ = m.groups()
     else:
         raise ValueError(python_dependency)
 
     min_version_tuple = version_to_tuple(min_version)
-    max_version_tuple = version_to_tuple(max_version)
 
     for classifier in wheel_meta.get_all("Classifier"):
         if classifier.startswith("Programming Language :: Python ::"):
             version_tuple = version_to_tuple(classifier.split("::")[-1].strip())
             if len(version_tuple) > 1:
-                assert version_tuple >= min_version_tuple and version_tuple < max_version_tuple
+                assert version_tuple >= min_version_tuple
+                assert version_tuple < PY_MAX_VERSION
 
 
 def test_wheel_no_extra_contents(build: Build, version: str):
@@ -168,7 +169,6 @@ def test_sdist_contents(build: Build, version: str):
             "pyproject.toml",
             "pytest_httpserver",
             "README.md",
-            "setup.py",
             "tests",
         },
         "doc": {