diff --git a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/growi-system/mongodb/statefulset.yaml b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/growi-system/mongodb/statefulset.yaml
index a69a779ae..0773a0dba 100644
--- a/seichi-onp-k8s/manifests/seichi-kubernetes/apps/growi-system/mongodb/statefulset.yaml
+++ b/seichi-onp-k8s/manifests/seichi-kubernetes/apps/growi-system/mongodb/statefulset.yaml
@@ -15,7 +15,35 @@ spec:
         app: mongodb
     spec:
       containers:
-      - name: mongodb
-        image: mongo:6.0
-        ports:
-        - containerPort: 27017
+        - name: mongodb
+          image: mongo:6.0
+          ports:
+            - containerPort: 27017
+          volumeMounts:
+            - name: mongo-data
+              mountPath: /data/db
+          livenessProbe:
+            exec:
+              command:
+                - mongo
+                - --eval
+                - "db.adminCommand('ping')"
+            initialDelaySeconds: 30
+            periodSeconds: 10
+          readinessProbe:
+            exec:
+              command:
+                - mongo
+                - --eval
+                - "db.adminCommand('ping')"
+            initialDelaySeconds: 5
+            periodSeconds: 10
+  volumeClaimTemplates:
+    - metadata:
+        name: mongo-data
+      spec:
+        accessModes: 
+          - "ReadWriteOnce"
+        resources:
+          requests:
+            storage: 20Gi