diff --git a/Jenkinsfile b/Jenkinsfile
index c556559..dac569d 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -3,25 +3,35 @@ pipeline {
 
     stages {
         stage('prepare') {
-            sh 'pipenv install -d'
+            steps {
+                sh 'pipenv install -d'
+            }
         }
         stage('code style') {
-            sh 'pipenv run flake8 --max-line-length=120 --exclude=.venv/* .'
+            steps {
+                sh 'pipenv run flake8 --max-line-length=120 --exclude=.venv/* .'
+            }
         }
         stage('code complexity') {
-            sh 'pipenv run radon cc .'
-            sh 'pipenv run xenon -bB -mA -aA .'
+            steps {
+                sh 'pipenv run radon cc .'
+                sh 'pipenv run xenon -bB -mA -aA .'
+            }
         }
         stage('doc') {
-            dir ('doc') {
-                sh 'pipenv run make html'
-                sh 'pipenv run make man'
+            steps {
+                dir ('doc') {
+                    sh 'pipenv run make html'
+                    sh 'pipenv run make man'
+                }
+                archiveArtifacts artifacts: 'doc/man/*', fingerprint: true
             }
-            archiveArtifacts artifacts: 'doc/man/*', fingerprint: true
         }
         stage('build') {
-            sh 'pipenv run pex . -r <(pipenv lock -r) -e carom.cli:cli -o dist/carom-client'
-            archiveArtifacts artifacts: 'dist/*', fingerprint: true
+            steps {
+                sh 'pipenv run pex . -r <(pipenv lock -r) -e carom.cli:cli -o dist/carom-client'
+                archiveArtifacts artifacts: 'dist/*', fingerprint: true
+            }
         }
     }
 }
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