diff --git a/k8s/gorush-aws-alb-ingress.yaml b/k8s/gorush-aws-alb-ingress.yaml
index 9603c0ab..a0e34a94 100644
--- a/k8s/gorush-aws-alb-ingress.yaml
+++ b/k8s/gorush-aws-alb-ingress.yaml
@@ -11,10 +11,10 @@ metadata:
     alb.ingress.kubernetes.io/security-groups: sg-71069b17
 spec:
   rules:
-  - host: gorush.example.com
-    http:
-      paths:
-      - path: /
-        backend:
-          serviceName: gorush
-          servicePort: 8088
+    - host: gorush.example.com
+      http:
+        paths:
+          - path: /
+            backend:
+              serviceName: gorush
+              servicePort: 8088
diff --git a/k8s/gorush-deployment.yaml b/k8s/gorush-deployment.yaml
index ea0acd22..d94b3215 100644
--- a/k8s/gorush-deployment.yaml
+++ b/k8s/gorush-deployment.yaml
@@ -16,34 +16,34 @@ spec:
         tier: frontend
     spec:
       containers:
-      - image: appleboy/gorush:1.16.3
-        name: gorush
-        imagePullPolicy: Always
-        ports:
-        - containerPort: 8088
-        resources:
-          requests:
-            cpu: "250m"
-            memory: "256Mi"
-          limits:
-            cpu: "500m"
-            memory: "512Mi"
-        livenessProbe:
-          httpGet:
-            path: /healthz
-            port: 8000
-          initialDelaySeconds: 3
-          periodSeconds: 3
-        env:
-        - name: GORUSH_STAT_ENGINE
-          valueFrom:
-            configMapKeyRef:
-              name: gorush-config
-              key: stat.engine
-        - name: GORUSH_STAT_REDIS_ADDR
-          valueFrom:
-            configMapKeyRef:
-              name: gorush-config
-              key: stat.redis.host
-        - name: GORUSH_CORE_PORT
-          value: "8000"
+        - image: appleboy/gorush:1.18.4
+          name: gorush
+          imagePullPolicy: Always
+          ports:
+            - containerPort: 8088
+          resources:
+            requests:
+              cpu: "250m"
+              memory: "256Mi"
+            limits:
+              cpu: "500m"
+              memory: "512Mi"
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 8000
+            initialDelaySeconds: 3
+            periodSeconds: 3
+          env:
+            - name: GORUSH_STAT_ENGINE
+              valueFrom:
+                configMapKeyRef:
+                  name: gorush-config
+                  key: stat.engine
+            - name: GORUSH_STAT_REDIS_ADDR
+              valueFrom:
+                configMapKeyRef:
+                  name: gorush-config
+                  key: stat.redis.host
+            - name: GORUSH_CORE_PORT
+              value: "8000"
diff --git a/k8s/gorush-redis-deployment.yaml b/k8s/gorush-redis-deployment.yaml
index 68892532..349b3a63 100644
--- a/k8s/gorush-redis-deployment.yaml
+++ b/k8s/gorush-redis-deployment.yaml
@@ -18,14 +18,14 @@ spec:
         tier: backend
     spec:
       containers:
-      - name: master
-        image: redis:7
-        ports:
-        - containerPort: 6379
-        resources:
-          requests:
-            cpu: "250m"
-            memory: "256Mi"
-          limits:
-            cpu: "500m"
-            memory: "512Mi"
+        - name: master
+          image: redis:7
+          ports:
+            - containerPort: 6379
+          resources:
+            requests:
+              cpu: "250m"
+              memory: "256Mi"
+            limits:
+              cpu: "500m"
+              memory: "512Mi"
diff --git a/k8s/gorush-redis-service.yaml b/k8s/gorush-redis-service.yaml
index 5dd361a1..bd46233e 100644
--- a/k8s/gorush-redis-service.yaml
+++ b/k8s/gorush-redis-service.yaml
@@ -9,8 +9,8 @@ metadata:
     tier: backend
 spec:
   ports:
-  - port: 6379
-    targetPort: 6379
+    - port: 6379
+      targetPort: 6379
   selector:
     app: redis
     role: master
diff --git a/k8s/gorush-service.yaml b/k8s/gorush-service.yaml
index 8a68b161..6efdf94c 100644
--- a/k8s/gorush-service.yaml
+++ b/k8s/gorush-service.yaml
@@ -20,6 +20,6 @@ spec:
   # if you want gorush to be accessible only within the cluster
   # type: ClusterIP
   ports:
-  - protocol: TCP
-    port: 80
-    targetPort: 8088
+    - protocol: TCP
+      port: 80
+      targetPort: 8088