diff --git a/pymavlink b/pymavlink
index 6b468fb13a..4d8c4ff274 160000
--- a/pymavlink
+++ b/pymavlink
@@ -1 +1 @@
-Subproject commit 6b468fb13abb7c5bdb6b7dfb7cbac5af2e0a37ed
+Subproject commit 4d8c4ff274d41b9bc8da1a411cb172d39786e46b