diff --git a/tests/third_party/yosys b/tests/third_party/yosys
index 81df855..6155c59 160000
--- a/tests/third_party/yosys
+++ b/tests/third_party/yosys
@@ -1 +1 @@
-Subproject commit 81df8557d94c7e1ff734f2f90adcf00a67632302
+Subproject commit 6155c59d00125c58b4eb66f419ef6485439c0de2