diff --git a/yosys b/yosys
index 52417c1f4..7a4a3768c 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit 52417c1f4968361ee9cc88193cbe9947af4df214
+Subproject commit 7a4a3768c6c898afbddd292e9c92a2919b7c81d2