diff --git a/dist/util.js b/dist/util.js
index 12123d4..9cae5c2 100644
--- a/dist/util.js
+++ b/dist/util.js
@@ -1,4 +1,40 @@
 "use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+var __generator = (this && this.__generator) || function (thisArg, body) {
+    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
+    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
+    function verb(n) { return function (v) { return step([n, v]); }; }
+    function step(op) {
+        if (f) throw new TypeError("Generator is already executing.");
+        while (_) try {
+            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
+            if (y = 0, t) op = [op[0] & 2, t.value];
+            switch (op[0]) {
+                case 0: case 1: t = op; break;
+                case 4: _.label++; return { value: op[1], done: false };
+                case 5: _.label++; y = op[1]; op = [0]; continue;
+                case 7: op = _.ops.pop(); _.trys.pop(); continue;
+                default:
+                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
+                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
+                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
+                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
+                    if (t[2]) _.ops.pop();
+                    _.trys.pop(); continue;
+            }
+            op = body.call(thisArg, _);
+        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
+        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
+    }
+};
 var __importStar = (this && this.__importStar) || function (mod) {
     if (mod && mod.__esModule) return mod;
     var result = {};
@@ -28,37 +64,50 @@ exports.buildOutput = function (res) {
         "headers": res.headers
     });
 };
-exports.sendRequestWithRetry = function (config) {
-    var exit = false;
-    var countRetry = 0;
-    var retryArr = core.getInput('retry').split('/');
-    var numberOfRetry = Number(retryArr[0]);
-    var backoff = Number(retryArr[1]);
-    core.info("retry: " + countRetry);
-    do {
-        try {
-            axios_1.default(config)
-                .then(function (res) {
+exports.sendRequestWithRetry = function (config) { return __awaiter(void 0, void 0, void 0, function () {
+    var exit, countRetry, retryArr, numberOfRetry, backoff, err_1;
+    return __generator(this, function (_a) {
+        switch (_a.label) {
+            case 0:
+                exit = false;
+                countRetry = 0;
+                retryArr = core.getInput('retry').split('/');
+                numberOfRetry = Number(retryArr[0]);
+                backoff = Number(retryArr[1]);
+                core.info("retry: " + countRetry);
+                _a.label = 1;
+            case 1:
+                _a.trys.push([1, 2, , 6]);
+                axios_1.default(config)
+                    .then(function (res) {
+                    exit = true;
+                    output_1.default(res);
+                })
+                    .catch(function (err) {
+                    throw new Error(err);
+                });
+                return [3 /*break*/, 6];
+            case 2:
+                err_1 = _a.sent();
+                countRetry += 1;
+                core.info("retry: " + countRetry);
+                if (!(countRetry <= numberOfRetry)) return [3 /*break*/, 4];
+                return [4 /*yield*/, sleep(backoff * 1000)];
+            case 3:
+                _a.sent();
+                return [3 /*break*/, 5];
+            case 4:
                 exit = true;
-                output_1.default(res);
-            })
-                .catch(function (err) {
-                throw new Error(err);
-            });
+                core.setFailed(err_1);
+                _a.label = 5;
+            case 5: return [3 /*break*/, 6];
+            case 6:
+                if (!exit) return [3 /*break*/, 1];
+                _a.label = 7;
+            case 7: return [2 /*return*/];
         }
-        catch (err) {
-            countRetry += 1;
-            core.info("retry: " + countRetry);
-            if (countRetry <= numberOfRetry) {
-                sleep(backoff);
-            }
-            else {
-                exit = true;
-                core.setFailed(err);
-            }
-        }
-    } while (!exit);
-};
+    });
+}); };
 function sleep(ms) {
     return new Promise(function (resolve) { return setTimeout(resolve, ms); });
 }
diff --git a/dist/util.js.map b/dist/util.js.map
index 639d646..5e6bc90 100644
--- a/dist/util.js.map
+++ b/dist/util.js.map
@@ -1 +1 @@
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\ No newline at end of file
+{"version":3,"file":"util.js","sourceRoot":"./src/","sources":["util.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;AAAA,kDAAqC;AACrC,gDAAgE;AAChE,oDAAgC;AAEnB,QAAA,kBAAkB,GAAG,UAAC,gBAAwB;IACvD,IAAM,kBAAkB,GAAa,IAAI,CAAC,QAAQ,CAAC,QAAQ,CAAC;SACvD,KAAK,CAAC,GAAG,CAAC,CAAC,MAAM,CAAC,UAAA,CAAC,IAAI,OAAA,CAAC,KAAK,EAAE,EAAR,CAAQ,CAAC;SAChC,GAAG,CAAC,UAAA,CAAC,IAAI,OAAA,CAAC,CAAC,IAAI,EAAE,EAAR,CAAQ,CAAC,CAAC;IACxB,IAAI,CAAC,kBAAkB,CAAC,QAAQ,CAAC,gBAAgB,CAAC,EAAE;QAChD,MAAM,IAAI,KAAK,CAAC,iCAA+B,kBAAkB,iBAAY,gBAAkB,CAAC,CAAA;KACnG;AACL,CAAC,CAAA;AAEY,QAAA,WAAW,GAAG,UAAC,GAAuB;IAC/C,OAAO,IAAI,CAAC,SAAS,CAAC;QAClB,aAAa,EAAE,GAAG,CAAC,MAAM;QACzB,MAAM,EAAE,GAAG,CAAC,IAAI;QAChB,SAAS,EAAE,GAAG,CAAC,OAAO;KACzB,CAAC,CAAA;AACN,CAAC,CAAA;AAEY,QAAA,oBAAoB,GAAG,UAAO,MAA0B;;;;;gBAC7D,IAAI,GAAG,KAAK,CAAA;gBACZ,UAAU,GAAG,CAAC,CAAA;gBACZ,QAAQ,GAAa,IAAI,CAAC,QAAQ,CAAC,OAAO,CAAC,CAAC,KAAK,CAAC,GAAG,CAAC,CAAA;gBACtD,aAAa,GAAW,MAAM,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAA;gBAC3C,OAAO,GAAW,MAAM,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,CAAA;gBAC3C,IAAI,CAAC,IAAI,CAAC,YAAU,UAAY,CAAC,CAAA;;;;gBAGzB,eAAK,CAAC,MAAM,CAAC;qBACZ,IAAI,CAAC,UAAA,GAAG;oBACL,IAAI,GAAG,IAAI,CAAA;oBACX,gBAAS,CAAC,GAAG,CAAC,CAAA;gBAClB,CAAC,CAAC;qBACD,KAAK,CAAC,UAAA,GAAG;oBACN,MAAM,IAAI,KAAK,CAAC,GAAG,CAAC,CAAA;gBACxB,CAAC,CAAC,CAAA;;;;gBAEF,UAAU,IAAI,CAAC,CAAA;gBACf,IAAI,CAAC,IAAI,CAAC,YAAU,UAAY,CAAC,CAAA;qBAC7B,CAAA,UAAU,IAAI,aAAa,CAAA,EAA3B,wBAA2B;gBAC3B,qBAAM,KAAK,CAAC,OAAO,GAAG,IAAI,CAAC,EAAA;;gBAA3B,SAA2B,CAAA;;;gBAE3B,IAAI,GAAG,IAAI,CAAA;gBACX,IAAI,CAAC,SAAS,CAAC,KAAG,CAAC,CAAA;;;;oBAGtB,CAAC,IAAI;;;;;KACjB,CAAA;AAED,SAAS,KAAK,CAAC,EAAU;IACrB,OAAO,IAAI,OAAO,CAAC,UAAA,OAAO,IAAI,OAAA,UAAU,CAAC,OAAO,EAAE,EAAE,CAAC,EAAvB,CAAuB,CAAC,CAAC;AAC3D,CAAC"}
\ No newline at end of file
diff --git a/src/util.ts b/src/util.ts
index 3d40051..78c1eda 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -19,7 +19,7 @@ export const buildOutput = (res: AxiosResponse<any>): string => {
     })
 }
 
-export const sendRequestWithRetry = (config: AxiosRequestConfig): void => {
+export const sendRequestWithRetry = async (config: AxiosRequestConfig) => {
     var exit = false
     var countRetry = 0
     const retryArr: string[] = core.getInput('retry').split('/')
@@ -40,7 +40,7 @@ export const sendRequestWithRetry = (config: AxiosRequestConfig): void => {
             countRetry += 1
             core.info(`retry: ${countRetry}`)
             if (countRetry <= numberOfRetry) {
-                sleep(backoff * 1000)
+                await sleep(backoff * 1000)
             } else {
                 exit = true
                 core.setFailed(err)