diff --git a/crates/stdnum-py/tests/requirements.txt b/crates/stdnum-py/tests/requirements.txt
index 9976c0a2..8decb6b0 100644
--- a/crates/stdnum-py/tests/requirements.txt
+++ b/crates/stdnum-py/tests/requirements.txt
@@ -1 +1 @@
-ty==0.0.63
+ty==0.0.65