diff --git a/src/index.js b/src/index.js
index 940b29d..534681e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,7 +1,7 @@
 const core = require("@actions/core");
 const axios = require("axios");
 
-const auth = {}
+let auth = undefined
 let customHeaders = {}
 
 if (!!core.getInput('customHeaders')) {
@@ -14,12 +14,11 @@ if (!!core.getInput('customHeaders')) {
 
 const headers = { 'Content-Type': core.getInput('contentType') || 'application/json' }
 
-if (!!core.getInput('username')) {
-  auth.username = core.getInput('username');
-}
-
-if (!!core.getInput('password')) {
-  auth.password = core.getInput('password');
+if (!!core.getInput('username') || !!core.getInput('password')) {
+  auth = {
+    username: core.getInput('username'),
+    password: core.getInput('password')
+  }
 }
 
 if (!!core.getInput('bearerToken')) {
@@ -32,7 +31,6 @@ const instance = axios.create({
   headers: { ...headers, ...customHeaders }
 });
 
-
 (async() => {
   try {
     const response = await instance.request({