diff --git a/pyproject.toml b/pyproject.toml
index a32713b..79cc744 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ cud-gui = "cud.gui:main"
 [project.optional-dependencies]
 dev = [
   "ruff>=0.16.9",
-  "mypy>=1.15.0",
+  "mypy>=2.3.1",
   "pytest>=9.1.1",
   "pytest-cov>=7.1.0",
   "anyio>=4.15.1",