diff --git a/third_party/tools/yosys b/third_party/tools/yosys
index ad698f43970a..18a7c00382cd 160000
--- a/third_party/tools/yosys
+++ b/third_party/tools/yosys
@@ -1 +1 @@
-Subproject commit ad698f43970a7acdbacb5f13a2a0789e9bdf036c
+Subproject commit 18a7c00382cd64d46b61ff6cafe80851ca29cb77