diff --git a/firmware/libopencm3 b/firmware/libopencm3
index 87690732..e0040d7c 160000
--- a/firmware/libopencm3
+++ b/firmware/libopencm3
@@ -1 +1 @@
-Subproject commit 87690732661dd049657967d3951cb8f4674ede00
+Subproject commit e0040d7c82d174c3ef1c4d3e860aa2ab765a9ab7