diff --git a/lib/rt64 b/lib/rt64
index 9df3278..af87c70 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit 9df32787dddcce896eb14821c8f8f53ff9ba9516
+Subproject commit af87c70c7631de62dddb9045cee8abd7dbaefbda