diff --git a/Jenkinsfile.pjt b/Jenkinsfile.pjt
index d882f46..0c3d1c9 100644
--- a/Jenkinsfile.pjt
+++ b/Jenkinsfile.pjt
@@ -10,7 +10,7 @@ pipeline {
     // ===== Registry =====
     REGISTRY_HOST = "registry.pjt.kr"
     IMAGE_REPO    = "alist/api"
-    DOCKER_CRED   = "docker-registry-cred"   // ← Jenkins Credentials ID
+    DOCKER_CRED  = "docker-registry-login"
   }
 
   stages {
@@ -49,5 +49,26 @@ pipeline {
          '''
       }
     }
+
+    stage('5) Docker Login & Push') {
+      steps {
+        withCredentials([usernamePassword(
+          credentialsId: DOCKER_LOGIN,
+          usernameVariable: 'DOCKER_USER',
+          passwordVariable: 'DOCKER_PASS'
+        )]) {
+          sh '''
+            set -e
+
+            echo "$DOCKER_PASS" | docker login ${REGISTRY_HOST} \
+              -u "$DOCKER_USER" --password-stdin
+
+            docker push ${REGISTRY_HOST}/${IMAGE_REPO}:${IMAGE_TAG}
+
+            docker logout ${REGISTRY_HOST}
+          '''
+        }
+      }
+    }
   }
 }