diff --git a/metricbeat/helper/elastic/elastic.go b/metricbeat/helper/elastic/elastic.go
index 4af3871356c4..59626c6e8219 100644
--- a/metricbeat/helper/elastic/elastic.go
+++ b/metricbeat/helper/elastic/elastic.go
@@ -82,7 +82,7 @@ func (p Product) String() string {
 // MakeXPackMonitoringIndexName method returns the name of the monitoring index for
 // a given product { elasticsearch, kibana, logstash, beats }
 func MakeXPackMonitoringIndexName(product Product) string {
-	const version = "9"
+	const version = "8"
 
 	return fmt.Sprintf(".monitoring-%v-%v-mb", product.xPackMonitoringIndexString(), version)
 }
diff --git a/metricbeat/helper/elastic/elastic_test.go b/metricbeat/helper/elastic/elastic_test.go
index e6939cd42583..44416b469803 100644
--- a/metricbeat/helper/elastic/elastic_test.go
+++ b/metricbeat/helper/elastic/elastic_test.go
@@ -38,22 +38,22 @@ func TestMakeXPackMonitoringIndexName(t *testing.T) {
 		{
 			"Elasticsearch monitoring index",
 			Elasticsearch,
-			".monitoring-es-9-mb",
+			".monitoring-es-8-mb",
 		},
 		{
 			"Kibana monitoring index",
 			Kibana,
-			".monitoring-kibana-9-mb",
+			".monitoring-kibana-8-mb",
 		},
 		{
 			"Logstash monitoring index",
 			Logstash,
-			".monitoring-logstash-9-mb",
+			".monitoring-logstash-8-mb",
 		},
 		{
 			"Beats monitoring index",
 			Beats,
-			".monitoring-beats-9-mb",
+			".monitoring-beats-8-mb",
 		},
 	}