diff --git a/yosys b/yosys
index 669f8b18f..77b2ae2e3 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit 669f8b18f07ce9b3370eb017ed7f6189704ddad1
+Subproject commit 77b2ae2e3906c2aa5a14fbc4e2239ac3ddd08bfc