diff --git a/pyproject.toml b/pyproject.toml
index 30c82e99..e89705fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ optional-dependencies.dev = [
     "freezegun==1.5.5",
     "furo==2025.9.25",
     "interrogate==1.7.0",
-    "mypy[faster-cache]==1.18.2",
+    "mypy[faster-cache]==1.19.0",
     "mypy-strict-kwargs==2025.4.3",
     "pre-commit==4.5.0",
     "pydocstyle==6.3",