diff --git a/yosys b/yosys
index 59404f8ce..1bf908dea 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit 59404f8ce55506cfebfe39d1ad404d1ae62e0b0e
+Subproject commit 1bf908dea8e09f29e10b7eb44501151a63c68eb3