diff --git a/yosys b/yosys
index ef9045882..a55e8594b 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit ef90458820461988f389e6b7f069956fd4156673
+Subproject commit a55e8594b7a70fc84d0bc6dd1e3075b2737daaab