diff --git a/pyproject.toml b/pyproject.toml
index 754ea00..6d40ada 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,7 @@ lint = [
   "ruff==0.16.3",
 ]
 typecheck = [
-  "ty==0.0.72",
+  "ty==0.0.89",
 ]
 test = [
   "pytest==9.0.3",