diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6e33c6c..491351b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,19 +23,11 @@ jobs:
           - python-version: '3.12'
             coverage: 1
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Cache pip
-        uses: actions/cache@v2
-        with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
-            ${{ runner.os }}-
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/.gitignore b/.gitignore
index be9fa10..fae2747 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,8 +4,9 @@
 /*.egg-info
 /dist/
 /venv/
+/.venv/
 /.vscode/
 /build/
 .python-version
 .coverage
-coverage.xml
\ No newline at end of file
+coverage.xml
diff --git a/LICENSE b/LICENSE
index ecbb4f7..2177dd0 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015-2021 RetailDriver LLC
+Copyright (c) 2015-2025 RetailDriver LLC
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..19d6cc9
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,46 @@
+[build-system]
+requires = ["hatchling >= 1.26"]
+build-backend = "hatchling.build"
+
+[project]
+name = "retailcrm"
+version = "5.2.0"
+authors = [
+  { name="Alex Lushpai", email="lushpai@gmail.com" },
+]
+maintainers = [
+  { name="Alex Lushpai", email="lushpai@gmail.com" },
+]
+description = "RetailCRM API client"
+keywords = ["api", "ecom", "retailcrm"]
+readme = "README.md"
+requires-python = ">=3.8"
+dependencies = [
+    "multidimensional-urlencode==0.0.4",
+    "nose==1.3.7",
+    "requests==2.32.4",
+    "coverage==4.5.4",
+    "pook==1.3.0",
+    "hatchling >= 1.26"
+]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Environment :: Other Environment",
+    "Intended Audience :: Developers",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "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 :: Only",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+]
+license = "MIT"
+license-files = ["LICEN[CS]E*"]
+
+[project.urls]
+Homepage = "https://github.com/retailcrm/api-client-python"
+Issues = "https://github.com/retailcrm/api-client-python/issues"
diff --git a/requirements.txt b/requirements.txt
index 2749581..508eb50 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,7 @@
 multidimensional-urlencode==0.0.4
 nose==1.3.7
-requests==2.32.1
+requests==2.32.4
 coverage==4.5.4
 pook==1.3.0
-setuptools==70.0.0
+setuptools<81
+hatchling >= 1.26
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..d8e9a6f
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,4 @@
+[metadata]
+# This includes the license file(s) in the wheel.
+# https://wheel.readthedocs.io/en/stable/user_guide.html#including-license-files-in-the-generated-wheel-file
+license_files = LICENSE
\ No newline at end of file
diff --git a/setup.py b/setup.py
index ccaf379..2778cf1 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@ def read(filename):
 
 setup(
     name='retailcrm',
-    version='5.1.2',
+    version='5.2.0',
     description='RetailCRM API client',
     long_description=read('README'),
     url='https://github.com/retailcrm/api-client-python',
@@ -25,12 +25,11 @@ def read(filename):
     license='MIT',
     packages=['retailcrm', 'retailcrm/versions'],
     package_data={},
-    install_requires=['requests', 'multidimensional_urlencode', 'nose', 'coverage', 'pook', 'setuptools'],
+    install_requires=['requests', 'multidimensional_urlencode', 'nose', 'coverage', 'pook', 'setuptools', 'hatchling'],
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Environment :: Other Environment',
         'Intended Audience :: Developers',
-        'License :: OSI Approved :: MIT License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 3',