diff --git a/libopencm3 b/libopencm3
index cb0661f..664701d 160000
--- a/libopencm3
+++ b/libopencm3
@@ -1 +1 @@
-Subproject commit cb0661f81de5b1cae52ca99c7b5985b678176db7
+Subproject commit 664701d7a7f169235c457a3dd117415647aac61b