diff --git a/source/symbiflow-arch-defs b/source/symbiflow-arch-defs
index 1576447..971e49c 160000
--- a/source/symbiflow-arch-defs
+++ b/source/symbiflow-arch-defs
@@ -1 +1 @@
-Subproject commit 1576447622842f6fa4985ea2c91c2809201957a5
+Subproject commit 971e49c6a2639467f7b905702a4687e37b273735