diff --git a/yosys b/yosys
index 693724101..229d1ea93 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit 693724101280384479e0a3d15647a58a5e445a50
+Subproject commit 229d1ea9374ddec28ec4f7e3ca3eb4b404352f1b