diff --git a/pyproject.toml b/pyproject.toml
index fb3d5bd9..977d3306 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,7 +78,7 @@ dev = [
     "twine",
     # Pinned exactly: this is the single source of the ty version, read by the
     # pre-commit hook, `make ty` and the Type check workflow alike.
-    "ty==0.0.64",
+    "ty==0.0.69",
 ]
 
 [project.urls]