diff --git a/src/did/did-ion-resolver.ts b/src/did/did-ion-resolver.ts
index 211a44fb8..baeaa5a6b 100644
--- a/src/did/did-ion-resolver.ts
+++ b/src/did/did-ion-resolver.ts
@@ -17,7 +17,7 @@ export class DidIonResolver implements DidMethodResolver {
   /**
    * @param resolutionEndpoint optional custom URL to send DID resolution request to
    */
-  constructor (private resolutionEndpoint: string = 'https://discover.did.msidentity.com/1.0/identifiers/') { }
+  constructor (private resolutionEndpoint: string = 'https://ion.tbd.engineering/identifiers/') { }
 
   method(): string {
     return 'ion';
diff --git a/tests/did/did-ion-resolver.spec.ts b/tests/did/did-ion-resolver.spec.ts
index c7d6b9156..62c5a0ab9 100644
--- a/tests/did/did-ion-resolver.spec.ts
+++ b/tests/did/did-ion-resolver.spec.ts
@@ -7,7 +7,7 @@ import { DidIonResolver } from '../../src/did/did-ion-resolver.js';
 chai.use(chaiAsPromised);
 
 describe('DidIonResolver', () => {
-  const defaultResolutionEndpoint = 'https://discover.did.msidentity.com/1.0/identifiers/';
+  const defaultResolutionEndpoint = 'https://ion.tbd.engineering/identifiers/';
 
   it('should set a default resolution endpoint when none is given in constructor', async () => {
     const didIonResolver = new DidIonResolver();