diff --git a/Jenkinsfile b/Jenkinsfile
index 6727f09..f3d6ba3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -8,6 +8,9 @@ pipeline {
 
     stages {
         stage('Install composer') {
+            environment {
+                COMPOSER_HOME="${WORKSPACE}/.composer"
+            }
             agent {
                 dockerfile {
                     filename 'docker/Dockerfile-test'