diff --git a/x-pack/test_serverless/functional/test_suites/security/ftr/cloud_security_posture/agentless_api/create_agent.ts b/x-pack/test_serverless/functional/test_suites/security/ftr/cloud_security_posture/agentless_api/create_agent.ts
index b26581fb46dfd..07e689f014b35 100644
--- a/x-pack/test_serverless/functional/test_suites/security/ftr/cloud_security_posture/agentless_api/create_agent.ts
+++ b/x-pack/test_serverless/functional/test_suites/security/ftr/cloud_security_posture/agentless_api/create_agent.ts
@@ -25,6 +25,8 @@ export default function ({ getPageObjects, getService }: FtrProviderContext) {
   const AWS_SINGLE_ACCOUNT_TEST_ID = 'awsSingleTestId';
 
   describe('Agentless API Serverless', function () {
+   // see details: https://github.com/elastic/kibana/issues/199091
+    this.tags(['failsOnMKI']);
     let mockApiServer: http.Server;
     let cisIntegration: typeof pageObjects.cisAddIntegration;