diff --git a/test/cases/cts b/test/cases/cts
index b80c9fb..31dec17 160000
--- a/test/cases/cts
+++ b/test/cases/cts
@@ -1 +1 @@
-Subproject commit b80c9fb6511abd0021bf21b8b333ccd0856ab948
+Subproject commit 31dec1720dc9b9d3e8af3c61f025da93ceb6c9d1