diff --git a/pyproject.toml b/pyproject.toml
index c565c68..87e7468 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ mss = "mss.__main__:main"
 dev = [
   "build==1.3.0",
   "lxml==6.0.2",
-  "mypy==1.18.2",
+  "mypy==1.19.0",
   "ruff==0.14.7",
   "twine==6.2.0",
 ]