diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..f1ef86e
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,56 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.package-dir]
+"testgres.operations" = "src"
+
+[tool.flake8]
+extend-ignore = ["E501"]
+exclude = [".git", "__pycache__", "env", "venv"]
+
+[project]
+name = "testgres.os_ops"
+version = "1.0.0"
+
+description = "Testgres subsystem to work with OS"
+readme = "README.md"
+
+# [2026-01-05]
+#  This old format is used to ensure compatibility with Python 3.7.
+license = {text = "PostgreSQL"}
+
+authors = [
+    {name = "Postgres Professional", email = "testgres@postgrespro.ru"},
+]
+
+keywords = [
+    'testgres',
+]
+
+requires-python = ">=3.7.17"
+
+classifiers = [
+    "Intended Audience :: Developers",
+    "Operating System :: Unix",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "Topic :: Software Development :: Libraries",
+    "Topic :: Software Development :: Testing",
+]
+
+dependencies = [
+    "psutil",
+    "six>=1.9.0",
+    "testgres.common>=0.0.3,<1.0.0",
+]
+
+[project.urls]
+"HomePage" = "https://github.com/postgrespro/testgres.os_ops"
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index dbf5638..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,6 +0,0 @@
-[metadata]
-description_file = README.md
-
-[flake8]
-ignore = E501
-exclude = .git,__pycache__,env,venv
diff --git a/setup.py b/setup.py
deleted file mode 100644
index ff18f40..0000000
--- a/setup.py
+++ /dev/null
@@ -1,33 +0,0 @@
-try:
-    from setuptools import setup
-except ImportError:
-    from distutils.core import setup
-
-# Get contents of README file
-with open("README.md", "r") as f:
-    readme = f.read()
-
-# Basic dependencies
-install_requires = [
-    "psutil",
-    "six>=1.9.0",
-    "testgres.common>=0.0.2,<1.0.0",
-]
-
-setup(
-    version="1.0.0",
-    name="testgres.os_ops",
-    packages=[
-        "testgres.operations",
-    ],
-    package_dir={"testgres.operations": "src"},
-    description='Testgres subsystem to work with OS',
-    url='https://github.com/postgrespro/testgres.os_ops',
-    long_description=readme,
-    long_description_content_type='text/markdown',
-    license='PostgreSQL',
-    author='Postgres Professional',
-    author_email='testgres@postgrespro.ru',
-    keywords=['testgres'],
-    install_requires=install_requires,
-)
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 83532f5..5219a1f 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -5,3 +5,4 @@ six
 testgres.common>=0.0.2,<1.0.0
 black
 flake8
+flake8-pyproject