diff --git a/__tests__/labeler.test.ts b/__tests__/labeler.test.ts
index 64e8f684..681b59f8 100644
--- a/__tests__/labeler.test.ts
+++ b/__tests__/labeler.test.ts
@@ -1,5 +1,6 @@
 import fs from 'fs';
 import nock from 'nock';
+import {OctokitOptions} from '@octokit/core/dist-types/types';
 import {Inputs} from '../src/context';
 import {Labeler, LabelStatus} from '../src/labeler';
 
@@ -74,6 +75,11 @@ const cases = [
 
 const orginalGitHubRepo = process.env.GITHUB_REPOSITORY;
 
+const octokitOptions = {
+  retry: {enabled: false},
+  throttle: {enabled: false}
+} as OctokitOptions;
+
 describe('run', () => {
   beforeAll(() => {
     process.env.GITHUB_REPOSITORY = 'crazy-max/ghaction-github-labeler';
@@ -95,7 +101,7 @@ describe('run', () => {
       .get(`/repos/crazy-max/ghaction-github-labeler/contents/${encodeURIComponent(input.yamlFile as string)}`)
       .reply(200, configFixture(input.yamlFile as string));
 
-    const labeler = new Labeler(input);
+    const labeler = new Labeler(input, octokitOptions);
     await labeler.printRepoLabels();
     console.log(
       (await labeler.labels).map(label => {
@@ -166,7 +172,7 @@ describe('run', () => {
       .get(`/repos/crazy-max/ghaction-github-labeler/contents/${encodeURIComponent('.res/labels.merge1.yml')}`)
       .reply(200, configFixture('.res/labels.merge1.yml'));
 
-    const labeler = new Labeler(input);
+    const labeler = new Labeler(input, octokitOptions);
     const fileLabels = await labeler.fileLabels;
     expect(fileLabels.length).toBe(16);
     expect(fileLabels[15]).toEqual(expect.objectContaining({name: ':unicorn: Special'}));
diff --git a/dist/index.js b/dist/index.js
index 090a129f..41183059 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -125,8 +125,8 @@ var LabelStatus;
     LabelStatus[LabelStatus["Error"] = 6] = "Error";
 })(LabelStatus = exports.LabelStatus || (exports.LabelStatus = {}));
 class Labeler {
-    constructor(inputs) {
-        const octokit = utils_1.GitHub.plugin(octokit_plugin_config_1.config);
+    constructor(inputs, options = {}) {
+        const octokit = utils_1.GitHub.plugin(octokit_plugin_config_1.config).defaults(options);
         this.octokit = new octokit(utils_1.getOctokitOptions(inputs.githubToken));
         this.dryRun = inputs.dryRun;
         this.skipDelete = inputs.skipDelete;
@@ -277,7 +277,7 @@ class Labeler {
                     configs
                         .map(config => {
                         const labels = config.labels ? config.labels : config;
-                        return { labels };
+                        return { labels: labels || [] };
                     })
                         .map(config => {
                         config.labels.forEach(function (item) {
diff --git a/src/labeler.ts b/src/labeler.ts
index b2030986..a8ae60f3 100644
--- a/src/labeler.ts
+++ b/src/labeler.ts
@@ -5,7 +5,7 @@ import * as core from '@actions/core';
 import {Inputs} from './context';
 import {GitHub, getOctokitOptions, context} from '@actions/github/lib/utils';
 import {config} from '@probot/octokit-plugin-config';
-import deepmerge from 'deepmerge';
+import {OctokitOptions} from '@octokit/core/dist-types/types';
 export type Label = {
   name: string;
   color: string;
@@ -39,8 +39,8 @@ export class Labeler {
   private readonly repoLabels: Promise<Label[]>;
   readonly fileLabels: Promise<Label[]>;
 
-  constructor(inputs: Inputs) {
-    const octokit = GitHub.plugin(config);
+  constructor(inputs: Inputs, options: OctokitOptions = {}) {
+    const octokit = GitHub.plugin(config).defaults(options);
     this.octokit = new octokit(getOctokitOptions(inputs.githubToken));
     this.dryRun = inputs.dryRun;
     this.skipDelete = inputs.skipDelete;
@@ -213,7 +213,7 @@ export class Labeler {
         configs
           .map(config => {
             const labels = config.labels ? config.labels : config;
-            return {labels};
+            return {labels: labels || []};
           })
           .map(config => {
             config.labels.forEach(function (item: Label) {