diff --git a/vendor/bdwgc b/vendor/bdwgc
index 53997ad..a6e21c5 160000
--- a/vendor/bdwgc
+++ b/vendor/bdwgc
@@ -1 +1 @@
-Subproject commit 53997addf27a6f983ba55cf4c370d7685f8ad198
+Subproject commit a6e21c52d378a6ce617660bb9383069e8b9dd8a7