diff --git a/yosys b/yosys
index e6ff764e4..77570b6e0 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit e6ff764e4976a22ce855a4a58c42be8f74f3a8c6
+Subproject commit 77570b6e0f97f1923ebafd51ebfc9d9224a2f4cf