diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 3475c2b28..6f831b79d 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 3475c2b2825b83995ea636c1ab57354f1fdcbfbb
+Subproject commit 6f831b79df24af00c10e73e717cbe40d7d0e2439