diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 947f39fd3..1f7be26ca 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 947f39fd34f3e73dc5b9465600e84ab98e848a56
+Subproject commit 1f7be26cac0f66d263239146587eb6be6cbf7dec