diff --git a/firmware/MaixPy b/firmware/MaixPy
index f6f89308..ee91aef9 160000
--- a/firmware/MaixPy
+++ b/firmware/MaixPy
@@ -1 +1 @@
-Subproject commit f6f893089963164156e70ef3bd231a6f4a1e9536
+Subproject commit ee91aef97bcb5adb83a89713ca33d365cdd33650