diff --git a/yosys b/yosys
index 6155c59d0..408597b47 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit 6155c59d00125c58b4eb66f419ef6485439c0de2
+Subproject commit 408597b478f884681254f07a25c14f9485a7b5e6