diff --git a/package.json b/package.json
index 3f82cb8..4f5bb59 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
   },
   "devDependencies": {
     "@types/jest": "^26.0.14",
-    "@types/node": "^14.6.2",
+    "@types/node": "^14.18.36",
     "@typescript-eslint/eslint-plugin": "^4.4.0",
     "@typescript-eslint/parser": "^4.4.0",
     "eslint": "^7.10.0",
diff --git a/src/index.ts b/src/index.ts
index ae1d82e..99c3aa2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,10 +1,16 @@
 import AlertNotificationClient, { AlertNotificationConfiguration } from './client';
 
+export {
+    DestinationConfiguration,
+    CredentialsForDestinationService
+} from './utils/destination-configuration';
+
 export {
     Credentials,
     OAuthConfig,
     BasicAuthentication,
-    OAuthAuthentication
+    OAuthAuthentication,
+    CertificateAuthentication
 } from './authentication';
 
 export * as RegionUtils from './utils/region';
diff --git a/src/utils/destination-configuration.ts b/src/utils/destination-configuration.ts
index e8123a3..364665b 100644
--- a/src/utils/destination-configuration.ts
+++ b/src/utils/destination-configuration.ts
@@ -4,7 +4,7 @@ import { BasicAuthentication, OAuthAuthentication } from '../authentication';
 import { KeyStore, KeystoreFormat } from './key-store';
 import { toPem } from 'jks-js';
 
-export interface Credentials {
+export interface CredentialsForDestinationService {
     /**
      * Username
      */
@@ -41,10 +41,10 @@ export class DestinationConfiguration {
     /**
      * Creates an instance of DestinationServiceConfiguration.
      *
-     * @param {Credentials} config - contains username, password, destinationName, destinationUrl and oAuthTokenUrl. All
+     * @param {CredentialsForDestinationService} config - contains username, password, destinationName, destinationUrl and oAuthTokenUrl. All
      * of them must be provided else Error will be thrown.
      */
-    constructor(config: Credentials) {
+    constructor(config: CredentialsForDestinationService) {
         if (!config) {
             throw new Error('Configuration cannot be null, undefined or empty object');
         }