diff --git a/firmware/libopencm3 b/firmware/libopencm3
index 0ca89139..d3d6f3e7 160000
--- a/firmware/libopencm3
+++ b/firmware/libopencm3
@@ -1 +1 @@
-Subproject commit 0ca89139446586e743b842fb1074db0f2173f6dd
+Subproject commit d3d6f3e74b34593d1b56175abe5b4cb72da4ec9d