diff --git a/3rdparty b/3rdparty
index 2fac6fcf993f9cff25845218c3dccf3617ae14a7..42b675142d5c33b585f1bb204e910afeed7e98db 160000
--- a/3rdparty
+++ b/3rdparty
@@ -1 +1 @@
-Subproject commit 2fac6fcf993f9cff25845218c3dccf3617ae14a7
+Subproject commit 42b675142d5c33b585f1bb204e910afeed7e98db
diff --git a/build/OCPSinceChecker.php b/build/OCPSinceChecker.php
index 04a19b3416f5486e8a9cd6a6a705378a52d8a966..13f58fe2550a797bd08828c173bde756bf142527 100644
--- a/build/OCPSinceChecker.php
+++ b/build/OCPSinceChecker.php
@@ -99,7 +99,7 @@ class SinceTagCheckVisitor extends \PhpParser\NodeVisitorAbstract {
 echo 'Parsing all files in lib/public for the presence of @since or @deprecated on each method...' . PHP_EOL . PHP_EOL;
 
 
-$parser = new PhpParser\Parser(new PhpParser\Lexer);
+$parser = (new PhpParser\ParserFactory)->create(PhpParser\ParserFactory::PREFER_PHP7);
 
 /* iterate over all .php files in lib/public */
 $Directory = new RecursiveDirectoryIterator(dirname(__DIR__) . '/lib/public');
diff --git a/lib/private/App/CodeChecker/CodeChecker.php b/lib/private/App/CodeChecker/CodeChecker.php
index d2f6d7451b40e1cd30c76e2b0e3a6fbe5013d216..8f539897c977544a0d09330b3a21f4e7245b73a2 100644
--- a/lib/private/App/CodeChecker/CodeChecker.php
+++ b/lib/private/App/CodeChecker/CodeChecker.php
@@ -25,9 +25,9 @@
 namespace OC\App\CodeChecker;
 
 use OC\Hooks\BasicEmitter;
-use PhpParser\Lexer;
 use PhpParser\NodeTraverser;
 use PhpParser\Parser;
+use PhpParser\ParserFactory;
 use RecursiveCallbackFilterIterator;
 use RecursiveDirectoryIterator;
 use RecursiveIteratorIterator;
@@ -57,7 +57,7 @@ class CodeChecker extends BasicEmitter {
 	public function __construct(ICheck $checkList, $checkMigrationSchema) {
 		$this->checkList = $checkList;
 		$this->checkMigrationSchema = $checkMigrationSchema;
-		$this->parser = new Parser(new Lexer);
+		$this->parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
 	}
 
 	/**