diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 4edfffe2b..c6aa85e1f 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 4edfffe2b8d338444ef0b754954fba3b9fe78b9d
+Subproject commit c6aa85e1f59076eeabafa607ab8489f95fdbba20