diff --git a/pyproject.toml b/pyproject.toml
index aab9e1f..f4ec197 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dev = [
   "pytest>=7.0",
   "pytest-cov>=4.0",
   "ruff==0.5.7",
-  "mypy==1.14.1",
+  "mypy==2.3.1",
 ]
 
 [project.urls]