diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a6c700a..4fe1b9e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -46,8 +46,6 @@ repos:
     rev: v1.13.0
     hooks:
       - id: mypy
-        args:
-          - --config-file=setup.cfg
         additional_dependencies:
           - pytest
           - flake8
diff --git a/pyproject.toml b/pyproject.toml
index 917b4c5..6e7a0cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -70,3 +70,16 @@ exclude_lines = [
     'if TYPE_CHECKING:',
     'pragma: no cover'
 ]
+
+[tool.mypy]
+python_version = 3.9
+strict = true
+warn_redundant_casts = true
+warn_unused_configs = true
+warn_return_any = true
+show_error_codes = true
+ignore_missing_imports = true
+
+[[tool.mypy.overrides]]
+module = ["tests.*"]
+disallow_untyped_defs = false
diff --git a/setup.cfg b/setup.cfg
index 8702940..dfef943 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -31,15 +31,3 @@ per-file-ignores =
     flake8_type_checking/checker.py:SIM114
     flake8_type_checking/types.py:D
     tests/**.py:D103,D205,D400,D102,D101
-
-[mypy]
-python_version = 3.9
-strict = True
-warn_redundant_casts = True
-warn_unused_configs = True
-warn_return_any = True
-show_error_codes = True
-ignore_missing_imports = True
-
-[mypy-tests.*]
-disallow_untyped_defs = False