diff --git a/Jenkinsfile b/Jenkinsfile
index 02dbe7f..ad975f7 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -15,7 +15,7 @@ pipeline {
             steps {
                 sh 'python -m pip install --no-cache-dir --upgrade --user pip'
                 sh 'python -m pip install --no-cache-dir pipenv --user'
-                sh 'python -m pipenv install'
+                sh 'python -m pipenv install --dev'
             }
         }
         stage('Check') {