diff --git a/lib/middlewares/rejectIncompatbleMachines.js b/lib/middlewares/rejectIncompatbleMachines.js
index f105ea84..48ecef6f 100644
--- a/lib/middlewares/rejectIncompatbleMachines.js
+++ b/lib/middlewares/rejectIncompatbleMachines.js
@@ -18,6 +18,13 @@ const rejectIncompatibleMachines = function (req, res, next) {
     })
   }
 
+  if (serverMajor < machineMajor) {
+    logger.error(`Machine version too new: ${machineVersion} deviceId: ${deviceId}`)
+    return res.status(400).json({
+      error: 'Machine version too new'
+    })
+  }
+
   next()
 }