diff --git a/README.md b/README.md
index 01cac8e..a318175 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ return $orderable->apply($query)->get();
 ```
 
 ```sql
-select * FROM `users` ORDER BY `name` DESC;
+select * from `users` order by `name` desc;
 ```
 
 > The code will validate the column name before trying to apply `orderBy()` to the query, this would prevent SQL injection especially when column is given by the user.
diff --git a/src/Searchable.php b/src/Searchable.php
index 1f12dc5..4e07c79 100644
--- a/src/Searchable.php
+++ b/src/Searchable.php
@@ -61,7 +61,6 @@ public function apply($query)
      * Build wildcard query filter for field using where or orWhere.
      *
      * @param  \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder  $query
-     * @param  \Laravie\QueryFilter\Value\Field  $column
      *
      * @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder
      */
@@ -84,7 +83,6 @@ protected function queryOnColumn($query, Value\Field $column, string $likeOperat
      * Build wildcard query filter for column using where or orWhere.
      *
      * @param  \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder  $query
-     * @param  \Laravie\QueryFilter\Value\Field  $column
      *
      * @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder
      */
@@ -113,7 +111,6 @@ protected function queryOnColumnUsing(
      * Build wildcard query filter for JSON column using where or orWhere.
      *
      * @param  \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder  $query
-     * @param  \Laravie\QueryFilter\Value\Field  $column
      *
      * @return \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder
      */
diff --git a/src/Taxonomy.php b/src/Taxonomy.php
index 7eaa1e1..4ea9e44 100644
--- a/src/Taxonomy.php
+++ b/src/Taxonomy.php
@@ -80,7 +80,7 @@ protected function matchTaggedConditions($query): void
         }
 
         foreach ($this->rules as $keyword => $callback) {
-            if (Str::contains($keyword, ':*') || Str::contains($keyword, ':[]')) {
+            if (\strpos($keyword, ':*') !== false || \strpos($keyword, ':[]') !== false) {
                 [$tag, $type] = \explode(':', $keyword, 2);
 
                 $results = Arr::where($tagged, static function ($value) use ($tag) {
diff --git a/src/Value/Field.php b/src/Value/Field.php
index 9ecd561..1889476 100644
--- a/src/Value/Field.php
+++ b/src/Value/Field.php
@@ -23,7 +23,7 @@ public function validate(): bool
      */
     public function isRelationSelector(): bool
     {
-        return Str::contains($this->name, '.');
+        return \strpos($this->name, '.') !== false;
     }
 
     /**
@@ -31,7 +31,7 @@ public function isRelationSelector(): bool
      */
     public function isJsonPathSelector(): bool
     {
-        return Str::contains($this->name, '->');
+        return \strpos($this->name, '->') !== false;
     }
 
     /**
diff --git a/src/Value/Keywords.php b/src/Value/Keywords.php
index e5ab5b5..fe9ec53 100644
--- a/src/Value/Keywords.php
+++ b/src/Value/Keywords.php
@@ -32,7 +32,7 @@ public function __construct(string $basic, array $tagged)
     /**
      * Parse rules from keyword.
      *
-     * @return array
+     * @return static
      */
     public static function parse(string $keyword, array $rules)
     {