diff --git a/lib/rt64 b/lib/rt64
index 1dd8012..f15fc9a 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit 1dd801264dbbf7a2f4e8fc483d28664852f50082
+Subproject commit f15fc9a8d8a22af69109edbf15c4efcccfd5f595