diff --git a/Jenkinsfile b/Jenkinsfile
index 03cd57f..e98e5f3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -11,6 +11,9 @@ spec:
     volumeMounts:
       - name: jenkins-docker-cfg
         mountPath: /kaniko/.docker
+  envVars:
+  - envVar:
+    - MEDUSA_VER: 0.4.2
   volumes:
   - name: jenkins-docker-cfg
     projected: