diff --git a/Dockerfile b/Dockerfile
index 398dc98..ba1f321 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Nasz obraz będzie dzidziczył z obrazu Ubuntu w wersji latest
-FROM ubuntu:latest
+FROM ubuntu:focal
 
 # Instalujemy niezbędne zależności. Zwróć uwagę na flagę "-y" (assume yes)
 RUN apt update
diff --git a/Jenkinsfile b/Jenkinsfile
index 7c1b7d8..4166453 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,41 +1,12 @@
 pipeline {
-	agent any 
-	parameters {
-		string(
-		defaultValue: '0',
-		description: 'Umożliwia zdefiniowanie wielkości odcięcia zbioru danych.',
-		name: 'CUTOFF',
-		trim: false
-		)
-		string(
-			defaultValue: 'rokoch',
-			description: 'Kaggle username',
-			name: 'KAGGLE_USERNAME',
-			trim: false
-		)
-		password(
-			defaultValue: '',
-			description: 'Kaggle token taken from kaggle.json file, as described in https://github.com/Kaggle/kaggle-api#api-credentials',
-			name: 'KAGGLE_KEY'
-		)
-	}
-	stages {
-		stage('checkout') {
-			steps {
-				checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[url: 'https://git.wmi.amu.edu.pl/s426206/ium_426206.git']]])
-			}
-		}
-		
-		stage('docker') {
-			steps {
-				withEnv(["KAGGLE_USERNAME=${params.KAGGLE_USERNAME}",
-					"KAGGLE_KEY=${params.KAGGLE_KEY}"]) {
-					script {
-						def img = docker.build('rokoch/ium:01')
-						img.inside('-e KAGGLE_USERNAME=${params.KAGGLE_USERNAME} -e KAGGLE_KEY=${params.KAGGLE_KEY}') {}
-					}
-				}
-			}
-		}
-	}
-}
+    agent {
+        docker { image 'node:14-alpine' }
+    }
+    stages {
+        stage('Test') {
+            steps {
+                sh 'node --version'
+            }
+        }
+    }
+}
\ No newline at end of file