diff --git a/pyproject.toml b/pyproject.toml
index 0b13077..59a8c81 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ test = [
   "ruff>=0.5.0,<=0.15.0",
   "coverage>=7.5.4,<=7.13.4",
   "prek>=0.2.28,<0.4.0",
-  "ty>=0.0.12,<=0.0.15",
+  "ty>=0.0.12,<=0.0.19",
 ]
 
 [build-system]