diff --git a/third_party/yosys b/third_party/yosys
index 07eecff9..721040df 160000
--- a/third_party/yosys
+++ b/third_party/yosys
@@ -1 +1 @@
-Subproject commit 07eecff9cca555086667666c4dbdb4c6a7133c67
+Subproject commit 721040df76c7095463ebf4f708f94bb236333f61