diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 639758dbd..4c3e600da 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 639758dbd9a5f3e75a15449ddf80d6fd1cfa585e
+Subproject commit 4c3e600da2051f81fe3074ae344f75f96a66de9d