diff --git a/src/Jenssegers/Mongodb/Eloquent/Model.php b/src/Jenssegers/Mongodb/Eloquent/Model.php
index 894ebe41a..f0d0f41e9 100644
--- a/src/Jenssegers/Mongodb/Eloquent/Model.php
+++ b/src/Jenssegers/Mongodb/Eloquent/Model.php
@@ -241,7 +241,7 @@ protected function originalIsEquivalent($key, $current)
             $current = $current instanceof UTCDateTime ? $this->asDateTime($current) : $current;
             $original = $original instanceof UTCDateTime ? $this->asDateTime($original) : $original;
 
-            return $current == $original;
+            return $current === $original;
         }
 
         if ($this->hasCast($key)) {