diff --git a/pyproject.toml b/pyproject.toml
index 22acb66f..f2d768af 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -72,7 +72,7 @@ mss = "mss.__main__:main"
 dev = [
   "build==1.6.1",
   "lxml==6.1.3",
-  "mypy==2.3.1",
+  "mypy==2.4.0",
   "ruff==0.16.9",
   "twine==7.0.0",
   "typing_extensions==4.16.0",