diff --git a/Jenkinsfile b/Jenkinsfile
index e6204a8..204732c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,11 +1,10 @@
 pipeline {
     agent {
-        docker {
-            image 'ium'
-        }
+        dockerfile true 
     }
 
     stages {
+
         stage('Run Script') {
             steps {
                 echo ("checkout: check out from version control")