diff --git a/pyproject.toml b/pyproject.toml
index 217aaef..2ecf244 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ wks-read = "wks_com.__main__:read"
 [project.optional-dependencies]
 test = [
   "freezegun==1.5.5",
-  "mypy==1.19.0",
+  "mypy==1.19.1",
   "pytest==9.0.2",
   "pytest-cov==7.0.0",
   "ruff==0.14.9",