diff --git a/Jenkinsfile b/Jenkinsfile
index e54f597..7433b5b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -19,8 +19,11 @@ node {
         stage('Clone repo') {
                     withEnv(["KAGGLE_USERNAME=${params.KAGGLE_USERNAME}", "KAGGLE_KEY=${params.KAGGLE_KEY}"]){
                     checkout([$class: 'GitSCM', branches: [[name: '*/master']], doGenerateSubmoduleConfigurations: false, extensions: [], submoduleCfg: [], userRemoteConfigs: [[url: 'https://git.wmi.amu.edu.pl/s434765/ium_434765']]])
-                    sh 'chmod 777 get_data_simple.sh'
-                    sh './get_data_simple.sh'
+                    sh '''
+                        #!/usr/bin/env bash
+                        chmod 777 get_data_simple.sh
+                        ./get_data_simple.sh
+                    '''
                     archiveArtifacts data_dev
                     archiveArtifacts data_shuf
                     archiveArtifacts data_test