diff --git a/lib/rt64 b/lib/rt64
index f12be26..b1a78bf 160000
--- a/lib/rt64
+++ b/lib/rt64
@@ -1 +1 @@
-Subproject commit f12be26c25d988cb9393deba4343a098067d9f3b
+Subproject commit b1a78bf0054bf968f3364ee92ba02b611582f494