diff --git a/libraries/bytestring b/libraries/bytestring
index ea3d88aafb7dac9d8a40a0d083adfa4b7153826d..1543e054a314865d89a259065921d5acba03d966 160000
--- a/libraries/bytestring
+++ b/libraries/bytestring
@@ -1 +1 @@
-Subproject commit ea3d88aafb7dac9d8a40a0d083adfa4b7153826d
+Subproject commit 1543e054a314865d89a259065921d5acba03d966