diff --git a/third_party/yosys b/third_party/yosys
index 9f279237..91fbd589 160000
--- a/third_party/yosys
+++ b/third_party/yosys
@@ -1 +1 @@
-Subproject commit 9f27923782e0c9c8fb6298778929271eb06bcb02
+Subproject commit 91fbd58980e87ad5dc0a5d37c049ffaf5ab243dd