diff --git a/source/symbiflow-arch-defs b/source/symbiflow-arch-defs
index cc76574..ef20acc 160000
--- a/source/symbiflow-arch-defs
+++ b/source/symbiflow-arch-defs
@@ -1 +1 @@
-Subproject commit cc76574110bd449cd0cae16752d8e38df0a856d7
+Subproject commit ef20acc081b620f3fbbf1d585360564e1ac789bc