diff --git a/atmel-samd/asf4 b/atmel-samd/asf4
index 8dc86ee765..bff3972aba 160000
--- a/atmel-samd/asf4
+++ b/atmel-samd/asf4
@@ -1 +1 @@
-Subproject commit 8dc86ee7657c92553e70803fdcef681a257f7e32
+Subproject commit bff3972abaeab79502bd7d0498b6ae81cc335e19