diff --git a/pyproject.toml b/pyproject.toml
index 2c4fce2e..e7bfeb72 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,7 +71,7 @@ optional-dependencies.dev = [
     "sphinx-pyproject==0.3.0",
     "sphinx-substitution-extensions==2025.12.15",
     "sphinxcontrib-spelling==8.0.2",
-    "ty==0.0.4",
+    "ty==0.0.5",
     "types-pyyaml==6.0.12.20250915",
     "vulture==2.14",
     "vws-python-mock==2025.3.10.1",