diff --git a/external/lnprototest b/external/lnprototest
index 18452efa08c9..a8d4dcf6b859 160000
--- a/external/lnprototest
+++ b/external/lnprototest
@@ -1 +1 @@
-Subproject commit 18452efa08c9a9915819e81cdf9d9d92d828d812
+Subproject commit a8d4dcf6b859f3c11c92a917f7c48b2051dbb4c4