diff --git a/pyproject.toml b/pyproject.toml
index 82d4fdd..d6a2158 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dev = [
     "pytest==9.1.1",
     "pytest-cov==7.1.0",
     "ruff==0.16.6",
-    "ty==0.0.78",
+    "ty==0.0.86",
     "types-pyyaml==6.0.12.20260518",
 ]