diff --git a/pyproject.toml b/pyproject.toml
index 1c5e35dc..5ed5482f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -122,7 +122,7 @@ dev = [
     "pytest-cov>=4.0",
     "pytest-repeat>=0.9.4",
     "ruff>=0.16,<0.17",
-    "ty==0.0.88",
+    "ty==0.0.91",
     "vulture>=2.16,<3",
     "deptry>=0.25,<0.26",
     "pre-commit>=4.6,<5",