diff --git a/x-pack/test/alerting_api_integration/security_and_spaces/group1/tests/alerting/backfill/task_runner.ts b/x-pack/test/alerting_api_integration/security_and_spaces/group1/tests/alerting/backfill/task_runner.ts
index 86b6690972d1c..e21b9e598556c 100644
--- a/x-pack/test/alerting_api_integration/security_and_spaces/group1/tests/alerting/backfill/task_runner.ts
+++ b/x-pack/test/alerting_api_integration/security_and_spaces/group1/tests/alerting/backfill/task_runner.ts
@@ -87,7 +87,8 @@ export default function createBackfillTaskRunnerTests({ getService }: FtrProvide
     moment().utc().startOf('day').subtract(9, 'days').add(41, 'minutes').toISOString(),
   ];
 
-  describe('ad hoc backfill task', () => {
+  // FLAKY: https://github.com/elastic/kibana/issues/192144
+  describe.skip('ad hoc backfill task', () => {
     beforeEach(async () => {
       await esTestIndexTool.destroy();
       await esTestIndexTool.setup();