diff --git a/pyproject.toml b/pyproject.toml
index e9546ea..9027830 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ optional-dependencies = { dev = [
     "pytest-asyncio>=0.26.0",
     "pytest-env",
     "pre-commit==4.5.1; python_version >= '3.10'",
-    "mypy==1.19.1",
+    "mypy==1.20.1",
     "types-setuptools",
     "ruff==0.15.8",
 ] }