diff --git a/pyproject.toml b/pyproject.toml
index 0528c49..524613d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -95,84 +95,3 @@ convention = "numpy"
 
 [tool.setuptools.packages.find]
 include = ["detectree", "detectree.*"]
-
-[tool.tox]
-env_list = [
-  "lint",
-  "py39",
-  "py310",
-  "py311",
-  "py312"
-]
-requires = [
-  "tox>=4.19"
-]
-
-[tool.tox.env.lint]
-commands = [
-  [
-    [
-      "python",
-      "-m",
-      "build"
-    ],
-    [
-      "sphinx-build",
-      "docs",
-      "docs/_build"
-    ],
-    [
-      "twine",
-      "check",
-      "dist/*"
-    ]
-  ]
-]
-extras = [
-  "dev",
-  "doc",
-  "test"
-]
-whitelist_externals = [
-  "build",
-  "sphinx-build",
-  "twine"
-]
-
-[tool.tox.env_run_base]
-commands = [
-  [
-    "pytest",
-    "-s",
-    "--cov=detectree",
-    "--cov-append",
-    "--cov-report=xml",
-    "--cov-report",
-    "term-missing",
-    "tests"
-  ]
-]
-conda_deps = [
-  "lightgbm"
-]
-extras = [
-  "test"
-]
-whitelist_externals = [
-  "pytest"
-]
-
-[tool.tox.gh.python]
-"3.9" = [
-  "3.9"
-]
-"3.10" = [
-  "3.10"
-]
-"3.11" = [
-  "3.11"
-]
-"3.12" = [
-  "3.12",
-  "lint"
-]
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..fca23f2
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,37 @@
+[tox]
+# add py313 when https://github.com/microsoft/LightGBM/pull/6668 is merged
+env_list = py38, py39, py310, py311, py312, lint
+
+[gh]
+python =
+    3.12 = 3.12, lint
+    3.11 = 3.11
+    3.10 = 3.10
+    3.9 = 3.9
+    3.8 = 3.8
+
+[testenv:lint]
+conda_deps=
+    lightgbm
+allowlist_externals =
+    build
+    sphinx-build
+    twine
+extras =
+    test
+    doc
+    dev
+commands =
+    python -m build -s
+    sphinx-build docs docs/_build
+    twine check dist/*
+
+[testenv]
+conda_deps=
+    lightgbm
+allowlist_externals =
+    pytest
+extras =
+    test
+commands =
+    pytest -s --cov=detectree --cov-append --cov-report=xml --cov-report term-missing tests