diff --git a/src/JohannesSchobel/DingoQueryMapper/Operators/CollectionOperator.php b/src/JohannesSchobel/DingoQueryMapper/Operators/CollectionOperator.php
index c28c745..496a33f 100644
--- a/src/JohannesSchobel/DingoQueryMapper/Operators/CollectionOperator.php
+++ b/src/JohannesSchobel/DingoQueryMapper/Operators/CollectionOperator.php
@@ -1,10 +1,10 @@
 <?php
 
 namespace JohannesSchobel\DingoQueryMapper\Operators;
-use Illuminate\Database\Eloquent\Collection;
+
 use Illuminate\Http\Request;
 use Illuminate\Pagination\LengthAwarePaginator;
-use JohannesSchobel\DingoQueryMapper\Exceptions\UnknownColumnException;
+use Illuminate\Support\Collection;
 
 class CollectionOperator implements Operations
 {
diff --git a/src/JohannesSchobel/DingoQueryMapper/Parser/DingoQueryMapper.php b/src/JohannesSchobel/DingoQueryMapper/Parser/DingoQueryMapper.php
index 7fa9446..d7fe61e 100644
--- a/src/JohannesSchobel/DingoQueryMapper/Parser/DingoQueryMapper.php
+++ b/src/JohannesSchobel/DingoQueryMapper/Parser/DingoQueryMapper.php
@@ -2,8 +2,8 @@
 
 namespace JohannesSchobel\DingoQueryMapper\Parser;
 
-use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Http\Request;
+use Illuminate\Support\Collection;
 use JohannesSchobel\DingoQueryMapper\Operators\CollectionOperator;
 
 class DingoQueryMapper
@@ -73,7 +73,7 @@ private function prepare() {
      *
      * @return mixed
      */
-    public function filter() {
+    private function filter() {
         if ($this->allowsFilter()) {
             if ($this->hasFilters()) {
                 $tmp = [];