diff --git a/pyproject.toml b/pyproject.toml
index 5c11fa6..1e06118 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dev = [
     "pytest>=7.0",
     "pytest-cov>=4.0",
     "ruff==0.15.19",
-    "mypy>=1.8",
+    "mypy>=2.3.1",
     "pyyaml>=6.0",
 ]
 yaml = ["pyyaml>=6.0"]