diff --git a/Jenkinsfile b/Jenkinsfile
index b362cd7..4e9ca80 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -5,13 +5,19 @@ node {
         checkout scm
     }
 
-    stage('Build image') {
-        app = docker.build("hellonode")
+    agent { docker { image 'python:3.9.0' } }
+    stages {
+        stage('build') {
+            steps {
+                sh 'python --version'
+            }
+        }
     }
+}
 
     stage('Test image') {
         app.inside {
-            sh 'echo "Tests passed"'
+            sh 'echo "Passed"'
         }
     }
 }
\ No newline at end of file