diff --git a/pyproject.toml b/pyproject.toml
index ba91187..2fcd0b1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ test = [
   "ruff<=0.15.15,>=0.15.15",
   "coverage<=7.14.1,>=7.14.1",
   "prek>=0.4.3,<0.5.0",
-  "ty<=0.0.42,>=0.0.42",
+  "ty<=0.0.55,>=0.0.55",
 ]
 
 [build-system]