Another Jenkins update

Jenkinsfile

@@ -5,12 +5,13 @@ pipeline {
         stage('Build') {
             steps {
                 echo 'Building...'
+                sh 'python3.7 -m poetry install --develop .'
                 sh 'python3.7 -m poetry install'
             }
         }
         stage('Test') {
             steps {
-                sh 'tox'
+                sh 'poetry run tox'
             }
         }
         stage('Deploy') {