diff --git a/core/common/src/main/java/hera/api/model/Transaction.java b/core/common/src/main/java/hera/api/model/Transaction.java
index fee0455d..42294e17 100644
--- a/core/common/src/main/java/hera/api/model/Transaction.java
+++ b/core/common/src/main/java/hera/api/model/Transaction.java
@@ -55,7 +55,8 @@ public enum TxType {
     FEE_DELEGATION(3),
     TRANSFER(4),
     CALL(5),
-    DEPLOY(6);
+    DEPLOY(6),
+    MULTICALL(7);
 
     @Getter
     private final int intValue;
diff --git a/core/protobuf/src/main b/core/protobuf/src/main
index 0c3579cd..70eae434 160000
--- a/core/protobuf/src/main
+++ b/core/protobuf/src/main
@@ -1 +1 @@
-Subproject commit 0c3579cd42f830eb787715a78895d971b8ee5fce
+Subproject commit 70eae4345ecbff37f3b0529f4fb69d3e5d911223
diff --git a/core/transport/src/main/java/hera/transport/TransactionTypeConverterFactory.java b/core/transport/src/main/java/hera/transport/TransactionTypeConverterFactory.java
index 5f46e217..661efa47 100644
--- a/core/transport/src/main/java/hera/transport/TransactionTypeConverterFactory.java
+++ b/core/transport/src/main/java/hera/transport/TransactionTypeConverterFactory.java
@@ -41,6 +41,8 @@ public Blockchain.TxType apply(final Transaction.TxType domainTxType) {
               return Blockchain.TxType.CALL;
             case DEPLOY:
               return Blockchain.TxType.DEPLOY;
+            case MULTICALL:
+              return Blockchain.TxType.MULTICALL;
             default:
               return Blockchain.TxType.UNRECOGNIZED;
           }
@@ -68,6 +70,8 @@ public TxType apply(Blockchain.TxType rpcTxType) {
               return Transaction.TxType.CALL;
             case DEPLOY:
               return Transaction.TxType.DEPLOY;
+            case MULTICALL:
+              return Transaction.TxType.MULTICALL;
             default:
               return Transaction.TxType.UNRECOGNIZED;
           }