diff --git a/app3/cronjob/echoserver.yaml b/app3/cronjob/echoserver.yaml
index 4ae308a4..5173ee0e 100644
--- a/app3/cronjob/echoserver.yaml
+++ b/app3/cronjob/echoserver.yaml
@@ -14,7 +14,7 @@ spec:
           restartPolicy: Never
           containers:
             # https://hub.docker.com/_/busybox/
-            - image: busybox:1.28
+            - image: busybox:1.30
               name: echoserver
               command:
                 - /bin/sh