diff --git a/kubernetes/kuma-demo-aio.yaml b/kubernetes/kuma-demo-aio.yaml
index b6e58d0..d92bcb7 100644
--- a/kubernetes/kuma-demo-aio.yaml
+++ b/kubernetes/kuma-demo-aio.yaml
@@ -33,6 +33,8 @@ spec:
           value: kumademo
         - name: POSTGRES_DB
           value: kumademo
+        - name: PGDATA
+          value: /var/lib/postgresql/data/pgdata
         resources:
           requests:
             cpu: 100m
@@ -42,6 +44,12 @@ spec:
             memory: 256Mi
         ports:
         - containerPort: 5432
+        volumeMounts:
+        - mountPath: /var/lib/postgresql/data
+          name: pgdata
+      volumes:
+      - emptyDir: {}
+        name: pgdata
 ---
 apiVersion: v1
 kind: Service