diff --git a/tools/cc2538-bsl b/tools/cc2538-bsl
index d6711e24c..81cd4cbe5 160000
--- a/tools/cc2538-bsl
+++ b/tools/cc2538-bsl
@@ -1 +1 @@
-Subproject commit d6711e24ceeb1de09421166a3dc1b97378648af5
+Subproject commit 81cd4cbe5e05e4fa97782d1859ed15b769f4bf2b