diff --git a/composer.json b/composer.json
index 78827f66..fe9fc3e8 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
 	},
 	"require-dev": {
 		"nette/tester": "^2.4",
-		"nikic/php-parser": "^4.15",
+		"nikic/php-parser": "^5.0",
 		"tracy/tracy": "^2.8",
 		"phpstan/phpstan": "^1.0",
 		"jetbrains/phpstorm-attributes": "dev-master"
diff --git a/src/PhpGenerator/Extractor.php b/src/PhpGenerator/Extractor.php
index a6259dab..4452136c 100644
--- a/src/PhpGenerator/Extractor.php
+++ b/src/PhpGenerator/Extractor.php
@@ -46,9 +46,8 @@ private function parseCode(string $code): void
 			throw new Nette\InvalidStateException('The input string is not a PHP code.');
 		}
 
-		$this->code = Nette\Utils\Strings::normalizeNewlines($code);
-		$lexer = new PhpParser\Lexer\Emulative(['usedAttributes' => ['startFilePos', 'endFilePos', 'comments']]);
-		$parser = (new ParserFactory)->create(ParserFactory::ONLY_PHP7, $lexer);
+        $this->code = Nette\Utils\Strings::unixNewLines($code);
+        $parser = (new ParserFactory)->createForNewestSupportedVersion();
 		$stmts = $parser->parse($this->code);
 
 		$traverser = new PhpParser\NodeTraverser;
diff --git a/tests/PhpGenerator/fixtures/extractor.php b/tests/PhpGenerator/fixtures/extractor.php
index 936b5c0a..d8d80890 100644
--- a/tests/PhpGenerator/fixtures/extractor.php
+++ b/tests/PhpGenerator/fixtures/extractor.php
@@ -18,7 +18,7 @@ function comment1()
 	function comment2()
 	{
 		// comment
-		'bar';
+		"bar";
 	}
 
 	function comment3()