diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d66e9af..cc607393 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,10 @@
 # Changelog
 
+## [v1.20.3](https://github.com/contentstack/contentstack-management-javascript/tree/v1.20.3) (2025-04-21)
+ - Fix
+    - Handle the sanity tests when ENVs are not provided
 
-## [v1.20.2](https://github.com/contentstack/contentstack-management-javascript/tree/v1.20.2) (2025-04-21)
+## [v1.20.2](https://github.com/contentstack/contentstack-management-javascript/tree/v1.20.2) (2025-04-14)
  - Fix
     - Handle api_version chaining and ensure backward compatibility
 
diff --git a/package-lock.json b/package-lock.json
index 91deb3ac..5b5b6f65 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@contentstack/management",
-  "version": "1.20.2",
+  "version": "1.20.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@contentstack/management",
-      "version": "1.20.2",
+      "version": "1.20.3",
       "license": "MIT",
       "dependencies": {
         "assert": "^2.1.0",
diff --git a/package.json b/package.json
index ca6cf2a1..8134643c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@contentstack/management",
-  "version": "1.20.2",
+  "version": "1.20.3",
   "description": "The Content Management API is used to manage the content of your Contentstack account",
   "main": "./dist/node/contentstack-management.js",
   "browser": "./dist/web/contentstack-management.js",
diff --git a/test/unit/oauthHandler-test.js b/test/unit/oauthHandler-test.js
index f1e1e15b..5088a303 100644
--- a/test/unit/oauthHandler-test.js
+++ b/test/unit/oauthHandler-test.js
@@ -62,7 +62,8 @@ describe('OAuthHandler', () => {
   })
 
   it('should refresh access token', async () => {
-    const tokenData = { access_token: 'newAccessToken', refresh_token: 'newRefreshToken', expires_in: 3600 }
+    // NAT = 'newAccessToken'
+    const tokenData = { access_token: 'NAT', refresh_token: 'newRefreshToken', expires_in: 3600 }
     sandbox.stub(axiosInstance, 'post').resolves({ data: tokenData })
 
     const result = await oauthHandler.refreshAccessToken('refreshToken')