diff --git a/src/Monolog/Handler/MongoDBHandler.php b/src/Monolog/Handler/MongoDBHandler.php
index 6c431f2b..84dbdda3 100644
--- a/src/Monolog/Handler/MongoDBHandler.php
+++ b/src/Monolog/Handler/MongoDBHandler.php
@@ -31,8 +31,8 @@ class MongoDBHandler extends AbstractProcessingHandler
 
     public function __construct($mongo, $database, $collection, $level = Logger::DEBUG, $bubble = true)
     {
-        if (!($mongo instanceof \MongoClient || $mongo instanceof \Mongo)) {
-            throw new \InvalidArgumentException('MongoClient or Mongo instance required');
+        if (!($mongo instanceof \MongoClient || $mongo instanceof \Mongo || $mongo instanceof \MongoDB\Client)) {
+            throw new \InvalidArgumentException('MongoClient, Mongo or MongoDB\Client instance required');
         }
 
         $this->mongoCollection = $mongo->selectCollection($database, $collection);