diff --git a/vendor/nim-serialization b/vendor/nim-serialization
index afae13ada..005ee90cb 160000
--- a/vendor/nim-serialization
+++ b/vendor/nim-serialization
@@ -1 +1 @@
-Subproject commit afae13adac25b6fa98bacf4b9f38458dc64317b0
+Subproject commit 005ee90cb6aa563cdd690910455ea05f916ead3f
diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 56319dbac..1236d8df8 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 56319dbacf18b30df81699cc83e52792ce16eed5
+Subproject commit 1236d8df8f69b8b1cf86e5e6030dbcb3d65872f6