diff --git a/src/rust-core-foundation b/src/rust-core-foundation
index fa78ba0e72b..5647befc43d 160000
--- a/src/rust-core-foundation
+++ b/src/rust-core-foundation
@@ -1 +1 @@
-Subproject commit fa78ba0e72b9dc11a74c0a58583c963a5c9c62bb
+Subproject commit 5647befc43d4a2ea1f65e574d9138da40d39f7f4