diff --git a/tests/third_party/yosys b/tests/third_party/yosys
index 81df855..59404f8 160000
--- a/tests/third_party/yosys
+++ b/tests/third_party/yosys
@@ -1 +1 @@
-Subproject commit 81df8557d94c7e1ff734f2f90adcf00a67632302
+Subproject commit 59404f8ce55506cfebfe39d1ad404d1ae62e0b0e