diff --git a/libs/lockfree b/libs/lockfree
index 7388036785..421e9d8c2c 160000
--- a/libs/lockfree
+++ b/libs/lockfree
@@ -1 +1 @@
-Subproject commit 7388036785ed1146421e0f428aebe3d10332521e
+Subproject commit 421e9d8c2c75b03a8c58d60de8b21dc57128f079