diff --git a/pyproject.toml b/pyproject.toml
index 0d6cf82b..0558d10b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -82,7 +82,7 @@ optional-dependencies.dev = [
     "strict-kwargs==2026.7.24",
     "sybil==10.1.0",
     "towncrier==25.8.0",
-    "ty==0.0.65",
+    "ty==0.0.66",
     "types-requests==2.33.0.20260712",
     "vale==3.13.0.0",
     "vulture==2.16",