diff --git a/Jenkinsfile b/Jenkinsfile
index 8af4fa6..535f4cb 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,41 +1,46 @@
 pipeline {
    agent any
+   parameters {
+      string(
+         defaultValue: 'nbrt10',
+         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('Preparation') { 
-         properties([
-            //dostęp do API KAGGLE
-               parameters([
-                  string(
-                     defaultValue: 'nbrt10',
-                     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'
-                  )
-               ])
-         ])
+         steps {
+            script {
+               // Ustawianie danych uwierzytelniających KAGGLE
+               withCredentials([string(credentialsId: '', variable: 'KAGGLE_USERNAME'), string(credentialsId: '', variable: 'KAGGLE_KEY')]) {
+                  sh 'export KAGGLE_USERNAME=$KAGGLE_USERNAME && export KAGGLE_KEY=$KAGGLE_KEY'
+               }
+            }
+         }
       }
       stage('checkout') {
          steps {
-                //Klonowanie
-                checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[credentialsId: 'git-creds', url: 'https://git.wmi.amu.edu.pl/s487175/ium_z487175.git']]])
-            }
+            //Klonowanie
+            checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[credentialsId: 'git-creds', url: 'https://git.wmi.amu.edu.pl/s487175/ium_z487175.git']]])
+         }
       }
       stage('script') {
          steps {
-               //skrypt
-               sh './s487175-create-dataset-scriptsh.py' > output.txt
+            //skrypt
+            sh './s487175-create-dataset-scriptsh.py > output.txt'
          }
       }
    }
    post {
-    always {
-      //archiveArtifacts
-      archiveArtifacts artifacts: 'output.txt', onlyIfSuccessful: true
-    }
-  }
+      always {
+         //archiveArtifacts
+         archiveArtifacts artifacts: 'output.txt', onlyIfSuccessful: true
+      }
+   }
 }
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