diff --git a/bump.jl b/bump.jl
index f02f6913..527740eb 100644
--- a/bump.jl
+++ b/bump.jl
@@ -22,7 +22,7 @@ function bumpver(file, pattern, oldver, newver)
 end
 
 bumpver("Project.toml", "version = \"{}\"\n", oldver, newver)
-bumpver("setup.cfg", "version = {}\n", oldver, newver)
+bumpver("pyproject.toml", "version = \"{}\"\n", oldver, newver)
 bumpver("pysrc/juliacall/__init__.py", "__version__ = '{}'\n", oldver, newver)
 bumpver("pysrc/juliacall/juliapkg.json", "\"version\": \"={}\"", oldver, newver)
 bumpver("pysrc/juliacall/juliapkg-dev.json", "\"version\": \"={}\"", oldver, newver)
diff --git a/pyproject.toml b/pyproject.toml
index 8fe2f47a..ffd69434 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,26 @@
 [build-system]
 requires = ["setuptools>=42", "wheel"]
 build-backend = "setuptools.build_meta"
+
+[project]
+name = "juliacall"
+version = "0.9.23"
+description = "Julia and Python in seamless harmony"
+readme = { file = "README.md", content-type = "text/markdown" }
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent"
+]
+requires-python = ">=3.8"
+dependencies = ["juliapkg ~=0.1.8"]
+
+[tool.setuptools]
+zip-safe = false
+
+[tool.setuptools.packages.find]
+where = ["pysrc"]
+include = ["juliacall"]
+
+[tool.setuptools.package-data]
+"juliacall" = ["*.json", "*.jl"]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 54c6d93a..00000000
--- a/setup.cfg
+++ /dev/null
@@ -1,25 +0,0 @@
-[metadata]
-name = juliacall
-version = 0.9.23
-description = Julia and Python in seamless harmony
-long_description = file: README.md
-long_description_content_type = text/markdown
-url = http://github.com/JuliaPy/PythonCall.jl
-classifiers =
-    Programming Language :: Python :: 3
-    License :: OSI Approved :: MIT License
-    Operating System :: OS Independent
-
-[options]
-zip_safe = False
-package_dir =
-    =pysrc
-packages = juliacall
-python_requires = ~=3.8
-install_requires =
-    juliapkg ~=0.1.8
-
-[options.package_data]
-juliacall =
-    *.json
-    *.jl