diff --git a/package.json b/package.json
index 95c4f3e..3f34bdf 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "aptoplay-core",
   "author": "Catze-Labs",
   "license": "MIT",
-  "version": "1.0.4",
+  "version": "1.0.5",
   "description": "Aptos Gaming TS library",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/AptoPlay.ts b/src/AptoPlay.ts
index 46f76ff..0e80b5f 100644
--- a/src/AptoPlay.ts
+++ b/src/AptoPlay.ts
@@ -275,7 +275,9 @@ export class AptoPlay {
    * @param {string} sessionTicket - The sessionTicket generated by PlayFab when user login or register.
    * @returns {string} Return PlayFabId of user.
    */
-  public async validateAndGetPlayFabIdBySessionTicket(sessionTicket: string) {
+  public async validateAndGetPlayFabIdBySessionTicket(
+    sessionTicket: string
+  ): Promise<string> {
     const path = '/Server/AuthenticateSessionTicket';
     const params = {
       SessionTicket: sessionTicket