diff --git a/kubernetes/simple/deployment.yaml b/kubernetes/simple/deployment.yaml
index f1e0d4b..6b22c03 100644
--- a/kubernetes/simple/deployment.yaml
+++ b/kubernetes/simple/deployment.yaml
@@ -22,6 +22,6 @@ spec:
       - name: helloworld
         image: ghcr.io/pipe-cd/helloworld:v0.32.0
         args:
-          - server
+          - server-a
         ports:
-        - containerPort: 9085
+        - containerPort: 9086