diff --git a/src/contracts/contracts/RegistrationV2.ts b/src/contracts/contracts/RegistrationV4.ts
similarity index 98%
rename from src/contracts/contracts/RegistrationV2.ts
rename to src/contracts/contracts/RegistrationV4.ts
index 271e8195..cebee4db 100644
--- a/src/contracts/contracts/RegistrationV2.ts
+++ b/src/contracts/contracts/RegistrationV4.ts
@@ -22,7 +22,7 @@ import type {
   OnEvent,
 } from "../common";
 
-export interface RegistrationV2Interface extends utils.Interface {
+export interface RegistrationV4Interface extends utils.Interface {
   functions: {
     "getVersion()": FunctionFragment;
     "imx()": FunctionFragment;
@@ -96,12 +96,12 @@ export interface RegistrationV2Interface extends utils.Interface {
   events: {};
 }
 
-export interface RegistrationV2 extends BaseContract {
+export interface RegistrationV4 extends BaseContract {
   connect(signerOrProvider: Signer | Provider | string): this;
   attach(addressOrName: string): this;
   deployed(): Promise<this>;
 
-  interface: RegistrationV2Interface;
+  interface: RegistrationV4Interface;
 
   queryFilter<TEvent extends TypedEvent>(
     event: TypedEventFilter<TEvent>,
diff --git a/src/contracts/contracts/index.ts b/src/contracts/contracts/index.ts
index acf98b78..b0d9329b 100644
--- a/src/contracts/contracts/index.ts
+++ b/src/contracts/contracts/index.ts
@@ -4,4 +4,4 @@
 export type { StarkV3 } from "./StarkV3";
 export type { StarkV4 } from "./StarkV4";
 export type { Registration } from "./Registration";
-export type { RegistrationV2 } from "./RegistrationV2";
+export type { RegistrationV4 } from "./RegistrationV4";
diff --git a/src/contracts/factories/contracts/RegistrationV2__factory.ts b/src/contracts/factories/contracts/RegistrationV4__factory.ts
similarity index 92%
rename from src/contracts/factories/contracts/RegistrationV2__factory.ts
rename to src/contracts/factories/contracts/RegistrationV4__factory.ts
index 5da411e6..8536dedc 100644
--- a/src/contracts/factories/contracts/RegistrationV2__factory.ts
+++ b/src/contracts/factories/contracts/RegistrationV4__factory.ts
@@ -5,9 +5,9 @@
 import { Contract, Signer, utils } from "ethers";
 import type { Provider } from "@ethersproject/providers";
 import type {
-  RegistrationV2,
-  RegistrationV2Interface,
-} from "../../contracts/RegistrationV2";
+  RegistrationV4,
+  RegistrationV4Interface,
+} from "../../contracts/RegistrationV4";
 
 const _abi = [
   {
@@ -185,15 +185,15 @@ const _abi = [
   },
 ] as const;
 
-export class RegistrationV2__factory {
+export class RegistrationV4__factory {
   static readonly abi = _abi;
-  static createInterface(): RegistrationV2Interface {
-    return new utils.Interface(_abi) as RegistrationV2Interface;
+  static createInterface(): RegistrationV4Interface {
+    return new utils.Interface(_abi) as RegistrationV4Interface;
   }
   static connect(
     address: string,
     signerOrProvider: Signer | Provider
-  ): RegistrationV2 {
-    return new Contract(address, _abi, signerOrProvider) as RegistrationV2;
+  ): RegistrationV4 {
+    return new Contract(address, _abi, signerOrProvider) as RegistrationV4;
   }
 }
\ No newline at end of file
diff --git a/src/contracts/factories/contracts/index.ts b/src/contracts/factories/contracts/index.ts
index 51c3b93c..fb260da7 100644
--- a/src/contracts/factories/contracts/index.ts
+++ b/src/contracts/factories/contracts/index.ts
@@ -4,4 +4,4 @@
 export { StarkV3__factory } from "./StarkV3__factory";
 export { StarkV4__factory } from "./StarkV4__factory";
 export { Registration__factory } from "./Registration__factory";
-export { RegistrationV2__factory } from "./RegistrationV2__factory";
+export { RegistrationV4__factory } from "./RegistrationV4__factory";
diff --git a/src/contracts/index.ts b/src/contracts/index.ts
index e704cede..1a22f785 100644
--- a/src/contracts/index.ts
+++ b/src/contracts/index.ts
@@ -19,5 +19,5 @@ export type { StarkV4 } from './contracts/StarkV4';
 export { StarkV4__factory } from './factories/contracts/StarkV4__factory';
 export type { Registration } from './contracts/Registration';
 export { Registration__factory } from './factories/contracts/Registration__factory';
-export type { RegistrationV2 } from './contracts/RegistrationV2';
-export { RegistrationV2__factory } from './factories/contracts/RegistrationV2__factory';
+export type { RegistrationV4 } from './contracts/RegistrationV4';
+export { RegistrationV4__factory } from './factories/contracts/RegistrationV4__factory';