diff --git a/source/symbiflow-arch-defs b/source/symbiflow-arch-defs
index 206bd56..37bf3d5 160000
--- a/source/symbiflow-arch-defs
+++ b/source/symbiflow-arch-defs
@@ -1 +1 @@
-Subproject commit 206bd5657b5882647c2952dbaf118a0e9f6672f1
+Subproject commit 37bf3d52049d5861cfaa7a0942a03706af673941