diff --git a/tests/jenkins/Jenkinsfile b/tests/jenkins/Jenkinsfile
index f1e9f606e..e89fcf9fb 100644
--- a/tests/jenkins/Jenkinsfile
+++ b/tests/jenkins/Jenkinsfile
@@ -16,7 +16,9 @@ pipeline {
     timeout(time: 1, unit: 'HOURS')
   }
   environment {
+    PYTEST_PROCESSES = "${PYTEST_PROCESSES ?: "auto"}"
     PYTEST_ADDOPTS =
+      "-n=${PYTEST_PROCESSES} " +
       "--tb=short " +
       "--color=yes " +
       "--driver=SauceLabs " +