diff --git a/proto/utxorpc/v1beta/cardano/cardano.proto b/proto/utxorpc/v1beta/cardano/cardano.proto
index ff22309..765b100 100644
--- a/proto/utxorpc/v1beta/cardano/cardano.proto
+++ b/proto/utxorpc/v1beta/cardano/cardano.proto
@@ -86,6 +86,8 @@ message WitnessSet {
   repeated VKeyWitness vkeywitness = 1; // List of VKey witnesses.
   repeated Script script = 2; // List of scripts.
   repeated PlutusData plutus_datums = 3; // List of Plutus data elements associated with the transaction.
+  repeated Redeemer redeemers = 4; // List of redeemers
+  repeated BootstrapWitness bootstrapWitnesses = 5 // List of bootstrap witnesses
 }
 
 // Auxiliary data not directly tied to the validation process
@@ -208,6 +210,14 @@ message Block {
   uint64 timestamp = 3; // Block ms timestamp
 }
 
+// Represents bootstrap keys from Byron era
+message BootstrapWitness {
+  bytes vkey = 1; // Verification key.
+  bytes signature = 2; // Signature generated using the associated private key.
+  bytes chain_code = 3; // 32 bytes of chain code
+  bytes attributes = 4; // key attributes
+}
+
 // Represents a VKey witness used to sign a transaction.
 message VKeyWitness {
   bytes vkey = 1; // Verification key.