diff --git a/manifests/matrix_chart/sliding-sync.yaml b/manifests/matrix_chart/sliding-sync.yaml
index 34a510c..2f388c2 100644
--- a/manifests/matrix_chart/sliding-sync.yaml
+++ b/manifests/matrix_chart/sliding-sync.yaml
@@ -73,7 +73,7 @@ metadata:
     component: sliding-sync
   annotations:
     prometheus.io/scrape: "true"
-    prometheus.io/port: "9000"
+    prometheus.io/port: "9090"
 spec:
   type: ClusterIP
   ports: