diff --git a/ports/atmel-samd/asf4 b/ports/atmel-samd/asf4
index f99e36fb00..1b87f18f80 160000
--- a/ports/atmel-samd/asf4
+++ b/ports/atmel-samd/asf4
@@ -1 +1 @@
-Subproject commit f99e36fb008588bd9ff005099b3b89b7952fcfba
+Subproject commit 1b87f18f8091f258e63f85cef54bcc7bafd44598