diff --git a/lib/nanopb b/lib/nanopb
index c9124132a..afc499f9a 160000
--- a/lib/nanopb
+++ b/lib/nanopb
@@ -1 +1 @@
-Subproject commit c9124132a604047d0ef97a09c0e99cd9bed2c818
+Subproject commit afc499f9a410fc9bbf6c9c48cdd8d8b199d49eb4