diff --git a/pyproject.toml b/pyproject.toml
index f48c7a2db7..790765e635 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -56,7 +56,7 @@ version = "0.0.0"
 [project.optional-dependencies]
 test = [
   "codespell==2.4.1",
-  "mypy==1.19.1",
+  "mypy==1.20.1",
   "pre-commit==4.5.1",
   "pre-commit-hooks==6.0.0",
   "pytest==9.0.2",