diff --git a/pyproject.toml b/pyproject.toml
index 1f0b32a..05c8b6f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ dev = [
     "pytest>=7.1.2",
     "hypothesis>=6.23.3",
     "pytest-cov>=4.0.0",
-    "mypy==1.17.1",
+    "mypy==1.18.1",
     "pytest-parametrization>=2022",
     "pandas-pyarrow>=0.2.1",
     "pandas-stubs",