diff --git a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/transactions/transactions_groups_alerts.spec.ts b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/transactions/transactions_groups_alerts.spec.ts
index 6abefb559bc2d..07b19ecc0b2a5 100644
--- a/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/transactions/transactions_groups_alerts.spec.ts
+++ b/x-pack/test/api_integration/deployment_agnostic/apis/observability/apm/transactions/transactions_groups_alerts.spec.ts
@@ -73,7 +73,10 @@ export default function ApiTest({ getService }: DeploymentAgnosticFtrProviderCon
     return response.body as TransactionsGroupsMainStatistics;
   }
 
-  describe('Transaction groups alerts', () => {
+  describe('Transaction groups alerts', function () {
+    // fails on MKI, see https://github.com/elastic/kibana/issues/201531
+    this.tags(['failsOnMKI']);
+
     describe('when data is loaded', () => {
       const transactions = [
         {