diff --git a/pyproject.toml b/pyproject.toml
index 7ea84d0..71d33f3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ dependencies = [
 [project.optional-dependencies]
 test = [
   "codespell==2.4.2",
-  "mypy==1.20.0",
+  "mypy==1.20.1",
   "pre-commit==4.5.1",
   "pre-commit-hooks==6.0.0",
   "pytest==9.0.2",