diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 90ef8171..73c3cc69 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,11 +13,11 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: 3.7
-      - name: Install dependencies
-        run: pip install twine
+          python-version: 3.9
+      - name: Install build and twine
+        run: pip install build twine
       - name: Build package
-        run: python setup.py sdist
+        run: python -m build
       - name: Publish package to PyPI
         uses: pypa/gh-action-pypi-publish@v1.8.10
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index dc8bd208..ad4c4a77 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os:
-          - ubuntu-latest
+          - ubuntu-22.04
         python: [ 3.7, 3.9, 3.13]
         splunk-version:
           - "8.1"
diff --git a/README.md b/README.md
index 7cd66cc2..3c5ba360 100644
--- a/README.md
+++ b/README.md
@@ -48,13 +48,9 @@ Use `pip`:
 
     [sudo] pip install splunk-sdk
 
-Install the Python egg:
-
-    [sudo] pip install --egg splunk-sdk
-
 Install the sources you cloned from GitHub:
 
-    [sudo] python setup.py install
+    [sudo] python -m pip install .
 
 ## Testing Quickstart
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..9952745a
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,32 @@
+[build-system]
+requires = ["setuptools>=77.0.3"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "splunk-sdk"
+dynamic = ["version"]
+authors = [{ name = "Splunk, Inc.", email = "devinfo@splunk.com" }]
+license = "Apache-2.0"
+license-files = ["LICENSE"]
+description = "The Splunk Software Development Kit for Python"
+readme = "README.md"
+dependencies = ["deprecation>=2.1.0"]
+classifiers = [
+    "Programming Language :: Python",
+    "Development Status :: 6 - Mature",
+    "Environment :: Other Environment",
+    "Intended Audience :: Developers",
+    "Operating System :: OS Independent",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Software Development :: Libraries :: Application Frameworks",
+]
+
+[project.urls]
+Homepage = "http://github.com/splunk/splunk-sdk-python"
+
+
+[project.optional-dependencies]
+dev = ["tox>=4.8.0"]
+
+[tool.setuptools]
+packages = ["splunklib", "splunklib.modularinput", "splunklib.searchcommands"]
diff --git a/setup.py b/setup.py
index d19a09eb..f9661c34 100755
--- a/setup.py
+++ b/setup.py
@@ -16,39 +16,12 @@
 
 from setuptools import setup
 
-import splunklib
 
-setup(
-    author="Splunk, Inc.",
+def get_version():
+    with open("splunklib/__init__.py") as f:
+        for line in f:
+            if line.startswith("__version__"):
+                return line.split("=")[1].strip().strip('"').strip("'")
 
-    author_email="devinfo@splunk.com",
 
-    description="The Splunk Software Development Kit for Python.",
-
-    license="http://www.apache.org/licenses/LICENSE-2.0",
-
-    name="splunk-sdk",
-
-    packages = ["splunklib",
-                "splunklib.modularinput",
-                "splunklib.searchcommands"],
-
-    install_requires=[
-            "deprecation",
-        ],
-
-    url="http://github.com/splunk/splunk-sdk-python",
-
-    version=splunklib.__version__,
-
-    classifiers = [
-        "Programming Language :: Python",
-        "Development Status :: 6 - Mature",
-        "Environment :: Other Environment",
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: Apache Software License",
-        "Operating System :: OS Independent",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-        "Topic :: Software Development :: Libraries :: Application Frameworks",
-    ],
-)
+setup(version=get_version())
diff --git a/splunklib/__init__.py b/splunklib/__init__.py
index 5f83b2ac..d7aa5be8 100644
--- a/splunklib/__init__.py
+++ b/splunklib/__init__.py
@@ -30,5 +30,4 @@ def setup_logging(level, log_format=DEFAULT_LOG_FORMAT, date_format=DEFAULT_DATE
                         datefmt=date_format)
 
 
-__version_info__ = (2, 1, 0)
-__version__ = ".".join(map(str, __version_info__))
+__version__ = "2.1.0"