diff --git a/yosys b/yosys
index 171577f90..cf02f86c2 160000
--- a/yosys
+++ b/yosys
@@ -1 +1 @@
-Subproject commit 171577f909cd0ecc33d879a8925d70f6c9ca8f1e
+Subproject commit cf02f86c28ceb7f9bba041493663da3198c0fabc