diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index edf07d4f7..f87c99be0 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit edf07d4f7e0cb27afd207aa183c23cf448082d1b
+Subproject commit f87c99be04f3051fe2d9b4facf5e6e71251e8555