diff --git a/pyproject.toml b/pyproject.toml
index 42d9c78..ebd7e38 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,3 +46,19 @@ capitalisation_policy = 'upper'
 [tool.sqlfluff.rules.convention.terminator]
 multiline_newline = true
 require_final_semicolon = true
+
+[tool.tox]
+envlist = ["py", "pypy3", "pre-commit"]
+
+[tool.tox.env.pre-commit]
+commands = [["pre-commit", "run", "--all-files", "--show-diff-on-failure"]]
+deps = "pre-commit-uv"
+skip_install = true
+
+[tool.tox.env_run_base]
+commands = [
+  ["coverage", "erase"],
+  ["coverage", "run", "-m", "pytest", "{posargs:tests}"],
+  ["coverage", "report"],
+]
+deps = "-rrequirements-dev.txt"
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index 5ea9205..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[tox]
-envlist = py,pypy3,pre-commit
-
-[testenv]
-deps = -rrequirements-dev.txt
-commands =
-    coverage erase
-    coverage run -m pytest {posargs:tests}
-    coverage report
-
-[testenv:pre-commit]
-skip_install = true
-deps = pre-commit-uv
-commands = pre-commit run --all-files --show-diff-on-failure