diff --git a/Jenkinsfile b/Jenkinsfile
index 146b236..279c6ed 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,9 +1,10 @@
-// Jenkinsfile — Kaniko build + K8s deploy (latest only)
-def L      = 'kaniko-and-deploy'
-def REG    = 'harbor.sayinfo.co.kr'
-def IMAGE  = 'sayit-helpdesk/helpdesk-service'   // Harbor 프로젝트/레포 이름에 맞게 유지 또는 수정
-def APP_NS = 'sayit-helpdesk'                   // 실제 K8s 네임스페이스와 일치해야 함
-def DEPLOY = 'sayit-helpdesk-service'           // 실제 Deployment 이름과 일치해야 함
+// Jenkinsfile — Kaniko build + K8s deploy (빌드번호 태그 사용)
+def L         = 'kaniko-and-deploy'
+def REG       = 'harbor.sayinfo.co.kr'
+def IMAGE     = 'sayit-helpdesk/helpdesk-service'   // Harbor 프로젝트/레포 이름
+def APP_NS    = 'sayit-helpdesk'                    // 실제 K8s 네임스페이스
+def DEPLOY    = 'sayit-helpdesk-service'            // 실제 Deployment 이름
+def IMAGE_TAG = "${env.BUILD_NUMBER}"
 
 podTemplate(
   label: L,
@@ -104,7 +105,7 @@ spec:
             /kaniko/executor \\
               --context=. \\
               --dockerfile=Dockerfile \\
-              --destination=${REG}/${IMAGE}:latest \\
+              --destination=${REG}/${IMAGE}:${IMAGE_TAG} \\
               --snapshot-mode=redo \\
               --skip-tls-verify \\
               --cache=true \\
@@ -113,12 +114,11 @@ spec:
         }
       }
 
-       stage('Deploy to Kubernetes') {
+      stage('Deploy to Kubernetes') {
         container('kubectl') {
           sh """
             set -eux
-            kubectl -n ${APP_NS} set image deploy/${DEPLOY} ${DEPLOY}=${REG}/${IMAGE}:latest
-            kubectl -n ${APP_NS} rollout restart deploy/${DEPLOY}
+            kubectl -n ${APP_NS} set image deploy/${DEPLOY} ${DEPLOY}=${REG}/${IMAGE}:${IMAGE_TAG}
             kubectl -n ${APP_NS} rollout status deploy/${DEPLOY} --timeout=300s
 
             kubectl -n ${APP_NS} get deploy ${DEPLOY} -o wide