diff --git a/beacon_chain/libnimbus_lc/libnimbus_lc.nim b/beacon_chain/libnimbus_lc/libnimbus_lc.nim
index b32c05962..5985690f7 100644
--- a/beacon_chain/libnimbus_lc/libnimbus_lc.nim
+++ b/beacon_chain/libnimbus_lc/libnimbus_lc.nim
@@ -1645,8 +1645,8 @@ proc ETHTransactionsCreateFromJson(
         ecdsa_signature: array[65, byte]
 
       Eip6493Transaction = object
-        payload: PartialContainer[Eip6493TransactionPayload, 32]
-        signature: PartialContainer[Eip6493TransactionSignature, 16]
+        payload: StableContainer[Eip6493TransactionPayload, 32]
+        signature: StableContainer[Eip6493TransactionSignature, 16]
 
     var eip6493Tx: Eip6493Transaction
 
@@ -2348,7 +2348,7 @@ proc ETHReceiptsCreateFromJson(
         # EIP-658
         status: Opt[bool]
 
-      Eip6493Receipt = PartialContainer[Eip6493ReceiptPayload, 32]
+      Eip6493Receipt = StableContainer[Eip6493ReceiptPayload, 32]
 
     var eip6493Rec: Eip6493Receipt
     let transaction = ETHTransactionsGet(transactions, i.cint)
diff --git a/vendor/nim-ssz-serialization b/vendor/nim-ssz-serialization
index 4adb47104..bc32eaa90 160000
--- a/vendor/nim-ssz-serialization
+++ b/vendor/nim-ssz-serialization
@@ -1 +1 @@
-Subproject commit 4adb471040df5c7dbd8487c9d23dda366a316ffa
+Subproject commit bc32eaa90c81d69512e9f4c0b954856c4d2ac2c6