diff --git a/.mypy.ini b/.mypy.ini
deleted file mode 100644
index 1554ac0..0000000
--- a/.mypy.ini
+++ /dev/null
@@ -1,10 +0,0 @@
-[mypy]
-show_error_codes = true
-disallow_untyped_defs = true
-disallow_incomplete_defs = true
-no_implicit_optional = true
-warn_redundant_casts = true
-warn_unused_ignores = true
-warn_return_any = true
-warn_unreachable = true
-strict_equality = true
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 2831c73..e25dcd7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,3 +39,14 @@ include-package-data = true
 
 [tool.setuptools.dynamic]
 version = {attr = "pytest_structlog.__version__"}
+
+[tool.mypy]
+show_error_codes = true
+disallow_untyped_defs = true
+disallow_incomplete_defs = true
+no_implicit_optional = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+warn_return_any = true
+warn_unreachable = true
+strict_equality = true