diff --git a/lib/rt64 b/lib/rt64
index 289609f..7242637 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit 289609f42fcd38da65b4dee7ab75d3d62c759dd4
+Subproject commit 7242637a73e00d12dcdb36851045d7f657fea7fc