diff --git a/lib/rt64 b/lib/rt64
index 11df4cc..6c84bd1 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit 11df4cc62a349a209bf3cf6173d54693286ab030
+Subproject commit 6c84bd1630798e8dd8ba1eb08f95139b26bb2288