diff --git a/package-lock.json b/package-lock.json
index 2409492..87243da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "bybit-api",
-  "version": "4.1.2",
+  "version": "4.1.3",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "bybit-api",
-      "version": "4.1.2",
+      "version": "4.1.3",
       "license": "MIT",
       "dependencies": {
         "axios": "^1.7.9",
diff --git a/package.json b/package.json
index 105f867..d0b6d56 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bybit-api",
-  "version": "4.1.2",
+  "version": "4.1.3",
   "description": "Complete & robust Node.js SDK for Bybit's REST APIs and WebSockets, with TypeScript & strong end to end tests.",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/rest-client-v5.ts b/src/rest-client-v5.ts
index b572edb..695ef6c 100644
--- a/src/rest-client-v5.ts
+++ b/src/rest-client-v5.ts
@@ -313,8 +313,27 @@ export class RestClientV5 extends BaseRestClient {
     return this.get('/v5/market/time');
   }
 
-  requestDemoTradingFunds(): Promise<{}> {
-    return this.postPrivate('/v5/account/demo-apply-money');
+  /**
+   *
+   ****** Demo Account APIs
+   *
+   */
+
+  requestDemoTradingFunds(params?: {
+    adjustType?: 0 | 1;
+    utaDemoApplyMoney?: Array<{
+      coin: string;
+      amountStr: string;
+    }>;
+  }): Promise<APIResponseV3<{}>> {
+    return this.postPrivate('/v5/account/demo-apply-money', params);
+  }
+
+  /**
+   * Create a demo trading account.
+   */
+  createDemoAccount(): Promise<APIResponseV3<{ subMemberId: string }>> {
+    return this.postPrivate('/v5/user/create-demo-member');
   }
 
   /**