diff --git a/pyproject.toml b/pyproject.toml
index e49199080..8af966e4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -63,7 +63,7 @@ optional-dependencies.dev = [
     "freezegun==1.5.4",
     "furo==2025.7.19",
     "interrogate==1.7.0",
-    "mypy[faster-cache]==1.17.0",
+    "mypy[faster-cache]==1.17.1",
     "mypy-strict-kwargs==2025.4.3",
     "pre-commit==4.2.0",
     "pydocstyle==6.3",