diff --git a/changelogs/head.asciidoc b/changelogs/head.asciidoc
index c0c37664a00..f3211c82c9f 100644
--- a/changelogs/head.asciidoc
+++ b/changelogs/head.asciidoc
@@ -7,6 +7,7 @@ https://github.com/elastic/apm-server/compare/8.15\...main[View commits]
 ==== Bug fixes
 
 - Track all bulk request response status codes {pull}13574[13574]
+- Fix a concurrent map write panic in monitoring middleware {pull}14335[14335]
 - Apply shutdown timeout to http server {pull}14339[14339]
 
 [float]
diff --git a/docker-compose.yml b/docker-compose.yml
index e4882ba608b..e02e428a248 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,7 +11,7 @@ x-logging: &default-logging
 services:
   elasticsearch:
     # TODO: replace with a pinned version such as 9.0.0-aaaaaaaa-SNAPSHOT
-    image: docker.elastic.co/elasticsearch/elasticsearch:9.0.0-532d78c6-SNAPSHOT
+    image: docker.elastic.co/elasticsearch/elasticsearch:9.0.0-9b4a1f9a-SNAPSHOT
     ports:
       - 9200:9200
     healthcheck:
@@ -43,7 +43,7 @@ services:
 
   kibana:
     # TODO: replace with a pinned version such as 9.0.0-aaaaaaaa-SNAPSHOT
-    image: docker.elastic.co/kibana/kibana:9.0.0-532d78c6-SNAPSHOT
+    image: docker.elastic.co/kibana/kibana:9.0.0-9b4a1f9a-SNAPSHOT
     ports:
       - 5601:5601
     healthcheck:
@@ -63,7 +63,7 @@ services:
 
   metricbeat:
     # TODO: replace with a pinned version such as 9.0.0-aaaaaaaa-SNAPSHOT
-    image: docker.elastic.co/beats/metricbeat:9.0.0-532d78c6-SNAPSHOT
+    image: docker.elastic.co/beats/metricbeat:9.0.0-9b4a1f9a-SNAPSHOT
     environment:
       ELASTICSEARCH_HOSTS: '["http://elasticsearch:9200"]'
       ELASTICSEARCH_USERNAME: "${KIBANA_ES_USER:-admin}"
diff --git a/internal/beater/middleware/monitoring_middleware.go b/internal/beater/middleware/monitoring_middleware.go
index 67c0125c285..e34b4b52ebc 100644
--- a/internal/beater/middleware/monitoring_middleware.go
+++ b/internal/beater/middleware/monitoring_middleware.go
@@ -20,6 +20,7 @@ package middleware
 import (
 	"context"
 	"net/http"
+	"sync"
 	"time"
 
 	"go.opentelemetry.io/otel"
@@ -37,8 +38,8 @@ type monitoringMiddleware struct {
 	meter metric.Meter
 
 	ints       map[request.ResultID]*monitoring.Int
-	counters   map[string]metric.Int64Counter
-	histograms map[string]metric.Int64Histogram
+	counters   sync.Map
+	histograms sync.Map
 }
 
 func (m *monitoringMiddleware) Middleware() Middleware {
@@ -79,23 +80,23 @@ func (m *monitoringMiddleware) inc(id request.ResultID) {
 
 func (m *monitoringMiddleware) getCounter(n string) metric.Int64Counter {
 	name := "http.server." + n
-	if met, ok := m.counters[name]; ok {
-		return met
+	if met, ok := m.counters.Load(name); ok {
+		return met.(metric.Int64Counter)
 	}
 
 	nm, _ := m.meter.Int64Counter(name)
-	m.counters[name] = nm
+	m.counters.LoadOrStore(name, nm)
 	return nm
 }
 
 func (m *monitoringMiddleware) getHistogram(n string, opts ...metric.Int64HistogramOption) metric.Int64Histogram {
 	name := "http.server." + n
-	if met, ok := m.histograms[name]; ok {
-		return met
+	if met, ok := m.histograms.Load(name); ok {
+		return met.(metric.Int64Histogram)
 	}
 
 	nm, _ := m.meter.Int64Histogram(name, opts...)
-	m.histograms[name] = nm
+	m.histograms.LoadOrStore(name, nm)
 	return nm
 }
 
@@ -109,8 +110,8 @@ func MonitoringMiddleware(m map[request.ResultID]*monitoring.Int, mp metric.Mete
 	mid := &monitoringMiddleware{
 		meter:      mp.Meter("internal/beater/middleware"),
 		ints:       m,
-		counters:   map[string]metric.Int64Counter{},
-		histograms: map[string]metric.Int64Histogram{},
+		counters:   sync.Map{},
+		histograms: sync.Map{},
 	}
 
 	return mid.Middleware()
diff --git a/testing/benchmark/outputs.tf b/testing/benchmark/outputs.tf
index 2cad7994126..a2f40c81e43 100644
--- a/testing/benchmark/outputs.tf
+++ b/testing/benchmark/outputs.tf
@@ -43,6 +43,6 @@ output "apm_server_ip" {
 }
 
 output "admin_console_url" {
-  value       = var.run_standalone ? "" : module.ec_deployment[0].admin_console_url
+  value       = var.run_standalone ? "https://cloud.elastic.co/deployments" : module.ec_deployment[0].admin_console_url
   description = "The admin console URL"
 }
diff --git a/testing/infra/k8s/base/stack/apm-server.yaml b/testing/infra/k8s/base/stack/apm-server.yaml
index fd5060edc65..d1e03f77243 100644
--- a/testing/infra/k8s/base/stack/apm-server.yaml
+++ b/testing/infra/k8s/base/stack/apm-server.yaml
@@ -4,7 +4,7 @@ metadata:
   name: apm-server
 spec:
   # TODO: replace with a pinned version such as 9.0.0-aaaaaaaa-SNAPSHOT
-  version: 9.0.0-532d78c6-SNAPSHOT
+  version: 9.0.0-9b4a1f9a-SNAPSHOT
   count: 1
   http:
     tls:
diff --git a/testing/infra/k8s/base/stack/elasticsearch.yaml b/testing/infra/k8s/base/stack/elasticsearch.yaml
index b4d245f9b68..ef1a70cda46 100644
--- a/testing/infra/k8s/base/stack/elasticsearch.yaml
+++ b/testing/infra/k8s/base/stack/elasticsearch.yaml
@@ -4,7 +4,7 @@ metadata:
   name: elasticsearch
 spec:
   # TODO: replace with a pinned version such as 9.0.0-aaaaaaaa-SNAPSHOT
-  version: 9.0.0-532d78c6-SNAPSHOT
+  version: 9.0.0-9b4a1f9a-SNAPSHOT
   auth:
     fileRealm:
       - secretName: elasticsearch-admin
diff --git a/testing/infra/k8s/base/stack/kibana.yaml b/testing/infra/k8s/base/stack/kibana.yaml
index 8cabf59e0fb..94991546342 100644
--- a/testing/infra/k8s/base/stack/kibana.yaml
+++ b/testing/infra/k8s/base/stack/kibana.yaml
@@ -4,7 +4,7 @@ metadata:
   name: kibana
 spec:
   # TODO: replace with a pinned version such as 9.0.0-aaaaaaaa-SNAPSHOT
-  version: 9.0.0-532d78c6-SNAPSHOT
+  version: 9.0.0-9b4a1f9a-SNAPSHOT
   count: 1
   elasticsearchRef:
     name: elasticsearch
diff --git a/x-pack/apm-server/default.pgo b/x-pack/apm-server/default.pgo
index d377661ceed..6b9b1f269b5 100644
Binary files a/x-pack/apm-server/default.pgo and b/x-pack/apm-server/default.pgo differ