diff --git a/yosys b/yosys
index d2b578867..669f8b18f 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit d2b57886745c6d838f0ebbfa38f8f6b47fa31d6e
+Subproject commit 669f8b18f07ce9b3370eb017ed7f6189704ddad1