diff --git a/Makefile b/Makefile
index f1479a4..cea513a 100644
--- a/Makefile
+++ b/Makefile
@@ -25,4 +25,7 @@ test-deprecations:
 	@docker-compose exec -ti php vendor/bin/phpunit --display-deprecations
 
 test-with-coverage:
-	@docker-compose exec -e XDEBUG_MODE=coverage -ti php vendor/bin/phpunit --coverage-html var
\ No newline at end of file
+	@docker-compose exec -e XDEBUG_MODE=coverage -ti php vendor/bin/phpunit --coverage-html var
+
+sh:
+	@docker-compose exec -ti php /bin/sh
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 011f08d..5ebd33f 100644
--- a/composer.json
+++ b/composer.json
@@ -36,13 +36,10 @@
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.13",
-        "doctrine/orm": "^2.13.0",
+        "doctrine/orm": "^2.13",
         "symfony/serializer": ">=5.4",
         "symfony/property-info": ">=5.4",
         "phpunit/phpunit": "^10.0",
         "symfony/property-access": ">=5.4"
-    },
-    "conflict": {
-        "doctrine/orm": ">=2.18.0"
     }
 }
diff --git a/src/ORM/Query/AST/ArrayExpression.php b/src/ORM/Query/AST/ArrayExpression.php
index d54947e..71a94fa 100644
--- a/src/ORM/Query/AST/ArrayExpression.php
+++ b/src/ORM/Query/AST/ArrayExpression.php
@@ -4,6 +4,7 @@
 
 namespace Pfilsx\PostgreSQLDoctrine\ORM\Query\AST;
 
+use Doctrine\Common\Lexer\Token;
 use Doctrine\ORM\Query\AST\Node;
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
@@ -34,7 +35,13 @@ public static function parse(Parser $parser): self
         \assert($lexer->lookahead !== null);
         $nodes = [];
 
-        switch ($lexer->lookahead['type']) {
+        if (\class_exists(Token::class) && $lexer->lookahead instanceof Token) {
+            $type = $lexer->lookahead->type;
+        } else {
+            $type = $lexer->lookahead['type'] ?? null;
+        }
+
+        switch ($type) {
             case Lexer::T_INPUT_PARAMETER:
                 $nodes[] = $parser->InputParameter();
 
diff --git a/src/ORM/Query/AST/Functions/AbstractAggregateWithFilterFunction.php b/src/ORM/Query/AST/Functions/AbstractAggregateWithFilterFunction.php
index ce967cf..d8fc90e 100644
--- a/src/ORM/Query/AST/Functions/AbstractAggregateWithFilterFunction.php
+++ b/src/ORM/Query/AST/Functions/AbstractAggregateWithFilterFunction.php
@@ -9,9 +9,12 @@
 use Doctrine\ORM\Query\Parser;
 use Doctrine\ORM\Query\SqlWalker;
 use Pfilsx\PostgreSQLDoctrine\ORM\Query\AST\FilterExpression;
+use Pfilsx\PostgreSQLDoctrine\ORM\Trait\VariadicTokenTrait;
 
 abstract class AbstractAggregateWithFilterFunction extends FunctionNode
 {
+    use VariadicTokenTrait;
+
     private const FILTER_IDENTIFIER = 'FILTER';
     private ?FilterExpression $filterExpression = null;
 
@@ -25,7 +28,7 @@ public function parse(Parser $parser): void
             return;
         }
 
-        $lookaheadValue = $lexer->lookahead['value'] ?? null;
+        $lookaheadValue = $this->getTokenField($lexer->lookahead, 'value');
 
         if (!\is_string($lookaheadValue) || \mb_strtoupper($lookaheadValue) !== self::FILTER_IDENTIFIER) {
             return;
diff --git a/src/ORM/Query/AST/Functions/ArrayAgg.php b/src/ORM/Query/AST/Functions/ArrayAgg.php
index da49cf4..2a3b6bb 100644
--- a/src/ORM/Query/AST/Functions/ArrayAgg.php
+++ b/src/ORM/Query/AST/Functions/ArrayAgg.php
@@ -11,6 +11,7 @@
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
 use Doctrine\ORM\Query\SqlWalker;
+use Pfilsx\PostgreSQLDoctrine\ORM\Trait\VariadicTokenTrait;
 
 /**
  * Implementation of PostgreSql ARRAY_AGG() function.
@@ -26,6 +27,8 @@
  */
 final class ArrayAgg extends AbstractAggregateWithFilterFunction implements TypedExpression
 {
+    use VariadicTokenTrait;
+
     private bool $distinct = false;
 
     private Node $expr;
@@ -49,7 +52,7 @@ public function parseFunction(Parser $parser): void
             $parser->match(Lexer::T_COMMA);
             $parser->match(Lexer::T_STRING);
 
-            $this->returnType = $lexer->token['value'];
+            $this->returnType = $this->getTokenField($lexer->token, 'value');
         }
 
         $parser->match(Lexer::T_CLOSE_PARENTHESIS);
diff --git a/src/ORM/Query/AST/Functions/Cast.php b/src/ORM/Query/AST/Functions/Cast.php
index dc6b99a..e81e5db 100644
--- a/src/ORM/Query/AST/Functions/Cast.php
+++ b/src/ORM/Query/AST/Functions/Cast.php
@@ -9,6 +9,7 @@
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
 use Doctrine\ORM\Query\SqlWalker;
+use Pfilsx\PostgreSQLDoctrine\ORM\Trait\VariadicTokenTrait;
 
 /**
  * Implementation of PostgreSql CAST() function.
@@ -19,6 +20,8 @@
  */
 final class Cast extends FunctionNode
 {
+    use VariadicTokenTrait;
+
     public Node $source;
 
     public string $type;
@@ -32,7 +35,7 @@ public function parse(Parser $parser): void
         $parser->match(Lexer::T_AS);
         $parser->match(Lexer::T_IDENTIFIER);
 
-        $type = $parser->getLexer()->token['value'] ?? null;
+        $type = $this->getTokenField($parser->getLexer()->token, 'value');
 
         if (!\is_string($type)) {
             return;
diff --git a/src/ORM/Query/AST/Functions/Extract.php b/src/ORM/Query/AST/Functions/Extract.php
index c5facd6..9ae39d8 100644
--- a/src/ORM/Query/AST/Functions/Extract.php
+++ b/src/ORM/Query/AST/Functions/Extract.php
@@ -9,6 +9,7 @@
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
 use Doctrine\ORM\Query\SqlWalker;
+use Pfilsx\PostgreSQLDoctrine\ORM\Trait\VariadicTokenTrait;
 
 /**
  * Implementation of PostgreSql EXTRACT function.
@@ -20,6 +21,7 @@
  */
 class Extract extends FunctionNode
 {
+    use VariadicTokenTrait;
     private string $expr;
 
     private Node $from;
@@ -30,7 +32,7 @@ public function parse(Parser $parser): void
         $parser->match(Lexer::T_OPEN_PARENTHESIS);
 
         $parser->match(Lexer::T_IDENTIFIER);
-        $this->expr = $parser->getLexer()->token['value'];
+        $this->expr = $this->getTokenField($parser->getLexer()->token, 'value');
         $parser->match(Lexer::T_FROM);
 
         $this->from = $parser->StringPrimary();
diff --git a/src/ORM/Query/AST/Functions/JsonGetArrayElement.php b/src/ORM/Query/AST/Functions/JsonGetArrayElement.php
index 2ee588a..9619e8b 100644
--- a/src/ORM/Query/AST/Functions/JsonGetArrayElement.php
+++ b/src/ORM/Query/AST/Functions/JsonGetArrayElement.php
@@ -7,6 +7,7 @@
 use Doctrine\ORM\Query\AST\Literal;
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
+use Pfilsx\PostgreSQLDoctrine\ORM\Trait\VariadicTokenTrait;
 
 /**
  * Implementation of PostgreSql JSON(B) array field retrieval by index.
@@ -15,8 +16,10 @@
  *
  * @example JSON_GET_ARRAY_ELEMENT(entity.field, 1)
  */
-final class JsonGetArrayElement extends JsonGetField
+class JsonGetArrayElement extends JsonGetField
 {
+    use VariadicTokenTrait;
+
     public function parse(Parser $parser): void
     {
         $parser->match(Lexer::T_IDENTIFIER);
@@ -25,14 +28,14 @@ public function parse(Parser $parser): void
         $parser->match(Lexer::T_COMMA);
 
         $parser->match(Lexer::T_INTEGER);
-        $this->path[] = new Literal(Literal::NUMERIC, $parser->getLexer()->token['value']);
+        $this->path[] = new Literal(Literal::NUMERIC, $this->getTokenField($parser->getLexer()->token, 'value'));
 
         if (!$parser->getLexer()->isNextToken(Lexer::T_CLOSE_PARENTHESIS)) {
             while ($parser->getLexer()->isNextToken(Lexer::T_COMMA)) {
                 $parser->match(Lexer::T_COMMA);
 
                 $parser->match(Lexer::T_INTEGER);
-                $this->path[] = new Literal(Literal::NUMERIC, $parser->getLexer()->token['value']);
+                $this->path[] = new Literal(Literal::NUMERIC, $this->getTokenField($parser->getLexer()->token, 'value'));
             }
         }
         $parser->match(Lexer::T_CLOSE_PARENTHESIS);
diff --git a/src/ORM/Query/AST/Functions/JsonGetArrayElementAsText.php b/src/ORM/Query/AST/Functions/JsonGetArrayElementAsText.php
index 0fd727d..094e135 100644
--- a/src/ORM/Query/AST/Functions/JsonGetArrayElementAsText.php
+++ b/src/ORM/Query/AST/Functions/JsonGetArrayElementAsText.php
@@ -7,6 +7,7 @@
 use Doctrine\ORM\Query\AST\Literal;
 use Doctrine\ORM\Query\Lexer;
 use Doctrine\ORM\Query\Parser;
+use Pfilsx\PostgreSQLDoctrine\ORM\Trait\VariadicTokenTrait;
 
 /**
  * Implementation of PostgreSql JSON(B) array field retrieval by index.
@@ -15,8 +16,10 @@
  *
  * @example JSON_GET_ARRAY_ELEMENT_AS_TEXT(entity.field, 1)
  */
-final class JsonGetArrayElementAsText extends JsonGetFieldAsText
+class JsonGetArrayElementAsText extends JsonGetFieldAsText
 {
+    use VariadicTokenTrait;
+
     public function parse(Parser $parser): void
     {
         $parser->match(Lexer::T_IDENTIFIER);
@@ -26,14 +29,14 @@ public function parse(Parser $parser): void
         $parser->match(Lexer::T_COMMA);
 
         $parser->match(Lexer::T_INTEGER);
-        $this->path[] = new Literal(Literal::NUMERIC, $parser->getLexer()->token['value']);
+        $this->path[] = new Literal(Literal::NUMERIC, $this->getTokenField($parser->getLexer()->token, 'value'));
 
         if (!$parser->getLexer()->isNextToken(Lexer::T_CLOSE_PARENTHESIS)) {
             while ($parser->getLexer()->isNextToken(Lexer::T_COMMA)) {
                 $parser->match(Lexer::T_COMMA);
 
                 $parser->match(Lexer::T_INTEGER);
-                $this->path[] = new Literal(Literal::NUMERIC, $parser->getLexer()->token['value']);
+                $this->path[] = new Literal(Literal::NUMERIC, $this->getTokenField($parser->getLexer()->token, 'value'));
             }
         }
 
diff --git a/src/ORM/Trait/VariadicTokenTrait.php b/src/ORM/Trait/VariadicTokenTrait.php
new file mode 100644
index 0000000..f607236
--- /dev/null
+++ b/src/ORM/Trait/VariadicTokenTrait.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Pfilsx\PostgreSQLDoctrine\ORM\Trait;
+
+use Doctrine\Common\Lexer\Token;
+
+/**
+ * @internal
+ */
+trait VariadicTokenTrait
+{
+    protected function getTokenField($token, string $field): mixed
+    {
+        if ($token === null) {
+            return null;
+        }
+
+        if (\class_exists(Token::class) && $token instanceof Token) {
+            return $token->$field;
+        }
+
+        return $token[$field] ?? null;
+    }
+}