diff --git a/index.js b/index.js
index 112e8a3..b0845bd 100644
--- a/index.js
+++ b/index.js
@@ -7,8 +7,8 @@ const PreferredAndroidMarket = {
   OTHER: 'Other',
 }
 
-function appUpgradeVersionCheck(appInfo, xApiKey, alertInfo) {
-  versionCheck(appInfo, xApiKey, alertInfo);
+function appUpgradeVersionCheck(appInfo, xApiKey, alertInfo, baseUrl) {
+  versionCheck(appInfo, xApiKey, alertInfo, baseUrl);
 }
 
 export { appUpgradeVersionCheck, PreferredAndroidMarket };
diff --git a/src/api.js b/src/api.js
index 2f7a1ab..508f2b7 100644
--- a/src/api.js
+++ b/src/api.js
@@ -1,9 +1,9 @@
 import axios from "axios";
 import axiosRetry from "axios-retry";
 
-async function checkVersionWithAppUpgrade(appInfo, xApiKey) {
+async function checkVersionWithAppUpgrade(appInfo, xApiKey, baseUrl = '') {
   try {
-    const appUpgradeBaseUrl = "https://appupgrade.dev";
+    const appUpgradeBaseUrl = baseUrl ? baseUrl : "https://appupgrade.dev/api/v1/versions/check";
     const { appName, appVersion, platform, environment, appLanguage } = appInfo;
 
     const { customAttributes } = appInfo;
@@ -27,7 +27,7 @@ async function checkVersionWithAppUpgrade(appInfo, xApiKey) {
     }
 
     const response = await axios.get(
-      `${appUpgradeBaseUrl}/api/v1/versions/check`,
+      appUpgradeBaseUrl,
       {
         headers: {
           "x-api-key": xApiKey,
diff --git a/src/version-check.js b/src/version-check.js
index f7464ce..d4976fb 100644
--- a/src/version-check.js
+++ b/src/version-check.js
@@ -3,11 +3,11 @@ import { checkVersionWithAppUpgrade } from "./api";
 import { Platform, Alert, Linking } from "react-native";
 import { PreferredAndroidMarket } from "app-upgrade-react-native-sdk";
 
-async function versionCheck(appInfo, xApiKey, alertInfo) {
+async function versionCheck(appInfo, xApiKey, alertInfo, baseUrl) {
   const isValid = validate(appInfo, xApiKey);
 
   if (isValid) {
-    const version = await checkVersionWithAppUpgrade(appInfo, xApiKey);
+    const version = await checkVersionWithAppUpgrade(appInfo, xApiKey, baseUrl);
     if (!version) {
       console.error("App Upgrade Error: Version is null.");
     } else if (version && version.found === true) {