diff --git a/lib/zh_avr_encoder b/lib/zh_avr_encoder
index 0aab7d9..23f87b6 160000
--- a/lib/zh_avr_encoder
+++ b/lib/zh_avr_encoder
@@ -1 +1 @@
-Subproject commit 0aab7d91014a189d8c677a26b022190d935f4486
+Subproject commit 23f87b631385369967cd8a0567da44f380693d93