diff --git a/lib/rt64 b/lib/rt64
index 36e3114..5631654 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit 36e3114cd23a80683504c257729ff7a419735f50
+Subproject commit 56316549da04385fdf1ed4a6517a65c47bd4832e