diff --git a/tools/yosys b/tools/yosys
index 26b51148a8..9ed031ddd5 160000
--- a/tools/yosys
+++ b/tools/yosys
@@ -1 +1 @@
-Subproject commit 26b51148a80ea546481cf4f0516be97e4ba251cc
+Subproject commit 9ed031ddd588442f22be13ce608547a5809b62f0