diff --git a/packages/backend/src/tests/app.ts b/packages/backend/src/tests/app.ts
index dda3a21c6b..e6a610c4ee 100644
--- a/packages/backend/src/tests/app.ts
+++ b/packages/backend/src/tests/app.ts
@@ -53,7 +53,11 @@ export const createTestApp = async (
     .reply(200, { recovery_link: 'https://example.com' })
     .persist()
 
-  nock(config.authAdminApiUrl).post('/').reply(200).persist()
+  nock(config.authAdminApiUrl)
+    .post('/')
+    .matchHeader('Accept', '*/*')
+    .reply(200)
+    .persist()
   logger.info({ nocks: nock.activeMocks() }, 'active mocks')
 
   const app = new App(container)