diff --git a/tools/yosys b/tools/yosys
index e97731b9dd..9ed031ddd5 160000
--- a/tools/yosys
+++ b/tools/yosys
@@ -1 +1 @@
-Subproject commit e97731b9dda91fa5fa53ed87df7c34163ba59a41
+Subproject commit 9ed031ddd588442f22be13ce608547a5809b62f0