diff --git a/packages/clerk-js/src/core/resources/AuthConfig.ts b/packages/clerk-js/src/core/resources/AuthConfig.ts
index 7aff640993d..00dcfd0504b 100644
--- a/packages/clerk-js/src/core/resources/AuthConfig.ts
+++ b/packages/clerk-js/src/core/resources/AuthConfig.ts
@@ -23,6 +23,7 @@ export class AuthConfig extends BaseResource implements AuthConfigResource {
       object: 'auth_config',
       id: this.id || '',
       single_session_mode: this.singleSessionMode,
+      claimed_at: this.claimedAt ? this.claimedAt.getTime() : null,
     };
   }
 }
diff --git a/packages/expo/src/cache/dummy-data/environment-resource.ts b/packages/expo/src/cache/dummy-data/environment-resource.ts
index a56e2eaa5a1..9c70302fec8 100644
--- a/packages/expo/src/cache/dummy-data/environment-resource.ts
+++ b/packages/expo/src/cache/dummy-data/environment-resource.ts
@@ -3,7 +3,7 @@ import type { EnvironmentJSON } from '@clerk/types';
 export const DUMMY_CLERK_ENVIRONMENT_RESOURCE = {
   object: 'environment',
   id: '',
-  auth_config: { object: 'auth_config', id: '', single_session_mode: true },
+  auth_config: { object: 'auth_config', id: '', single_session_mode: true, claimed_at: null },
   display_config: {
     object: 'display_config',
     id: 'display_config_DUMMY_ID',