diff --git a/src/tx/builder/schema.js b/src/tx/builder/schema.js
index 750359c3b4..9c90f884f4 100644
--- a/src/tx/builder/schema.js
+++ b/src/tx/builder/schema.js
@@ -236,7 +236,8 @@ export const VM_VERSIONS = {
   SOPHIA_IMPROVEMENTS_MINERVA: 3,
   SOPHIA_IMPROVEMENTS_FORTUNA: 4,
   FATE: 5,
-  SOPHIA_IMPROVEMENTS_LIMA: 6
+  SOPHIA_IMPROVEMENTS_LIMA: 6,
+  FATE_2: 7
 }
 // # see https://github.com/aeternity/protocol/blob/minerva/contracts/contract_vms.md#virtual-machines-on-the-%C3%A6ternity-blockchain
 export const ABI_VERSIONS = {
@@ -271,15 +272,19 @@ export const VM_ABI_MAP_LIMA = {
   [TX_TYPE.oracleRegister]: { vmVersion: [], abiVersion: [ABI_VERSIONS.NO_ABI, ABI_VERSIONS.SOPHIA] }
 }
 
+export const VM_ABI_MAP_IRIS = {
+  [TX_TYPE.contractCreate]: { vmVersion: [VM_VERSIONS.FATE_2], abiVersion: [ABI_VERSIONS.FATE] },
+  // TODO: Ensure that AEVM is still available here
+  [TX_TYPE.contractCall]: { vmVersion: [VM_VERSIONS.FATE_2, VM_VERSIONS.FATE, VM_VERSIONS.SOPHIA_IMPROVEMENTS_LIMA, VM_VERSIONS.SOPHIA_IMPROVEMENTS_FORTUNA, VM_VERSIONS.SOPHIA, VM_VERSIONS.SOPHIA_IMPROVEMENTS_MINERVA], abiVersion: [ABI_VERSIONS.FATE, ABI_VERSIONS.SOPHIA] },
+  [TX_TYPE.oracleRegister]: { vmVersion: [], abiVersion: [ABI_VERSIONS.NO_ABI, ABI_VERSIONS.SOPHIA] }
+}
+
 export const PROTOCOL_VM_ABI = {
-  // Roma
   1: VM_ABI_MAP_ROMA,
-  // Minerva
   2: VM_ABI_MAP_MINERVA,
-  // Fortuna
   3: VM_ABI_MAP_FORTUNA,
-  // Lima
-  4: VM_ABI_MAP_LIMA
+  4: VM_ABI_MAP_LIMA,
+  5: VM_ABI_MAP_IRIS
 }
 
 export const OBJECT_ID_TX_TYPE = {