diff --git a/subterrane b/subterrane
index 561b121..6439ca5 160000
--- a/subterrane
+++ b/subterrane
@@ -1 +1 @@
-Subproject commit 561b121bc04ac364a1a8e80f57f0805a5dafb1e5
+Subproject commit 6439ca59bfe8e3e4c5ed0826f41d2c49b862fb75