diff --git a/third_party/yosys b/third_party/yosys
index c372e7ba..b47bb5c8 160000
--- a/third_party/yosys
+++ b/third_party/yosys
@@ -1 +1 @@
-Subproject commit c372e7baf9c48d41ebdbea4486a72e8dfaaddd3d
+Subproject commit b47bb5c8100bf24c7075dc322f201779eda280b7