diff --git a/yosys b/yosys
index b08688f71..28ebefda4 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit b08688f71197316cd44859b8ced16136cf1b3957
+Subproject commit 28ebefda4ac6f534d1e7d3f00224040df0fc5b81