diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ac3625b..a0e064c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,6 +16,5 @@ repos:
     rev: v1.11.2
     hooks:
       - id: mypy
-        files: ^(src/cloudevents/)
+        args: [ "--config-file", "pyproject.toml" ]
         types: [ python ]
-        args: [ ]
diff --git a/mypy.ini b/mypy.ini
deleted file mode 100644
index 0fa267c..0000000
--- a/mypy.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[mypy]
-python_version = 3.9
-
-ignore_missing_imports = True
-namespace_packages = True
-explicit_package_bases = True
-scripts_are_modules = True
-pretty = True
-show_error_context = True
-follow_imports_for_stubs  = True
-warn_redundant_casts = True
-warn_unused_ignores = True
-# subset of mypy --strict
-# https://mypy.readthedocs.io/en/stable/config_file.html
-check_untyped_defs = True
-disallow_incomplete_defs = True
-warn_return_any = True
-strict_equality = True
-disallow_untyped_defs = True
-exclude = src/cloudevents/v1
diff --git a/pyproject.toml b/pyproject.toml
index 707f2d9..c9ea7b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -117,3 +117,26 @@ extend-ignore = ["E203"]
 testpaths = [
     "tests",
 ]
+
+[tool.mypy]
+python_version = 3.9
+
+ignore_missing_imports = true
+namespace_packages = true
+explicit_package_bases = true
+scripts_are_modules = true
+pretty = true
+show_error_context = true
+follow_imports_for_stubs = true
+warn_redundant_casts = true
+warn_unused_ignores = true
+# subset of mypy --strict
+# https://mypy.readthedocs.io/en/stable/config_file.html
+check_untyped_defs = true
+disallow_incomplete_defs = true
+warn_return_any = true
+strict_equality = true
+disallow_untyped_defs = true
+exclude = [
+    "src/cloudevents/v1"
+]