diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index 5bc7a5676e712b..45d742a498c650 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -42,9 +42,6 @@
 	<!-- Cache the scan results and re-use those for unchanged files on the next scan. -->
 	<arg name="cache" value=".cache/phpcs.json"/>
 
-	<!-- Check up to 20 files simultaneously. -->
-	<arg name="parallel" value="20"/>
-
 	<file>./bin</file>
 	<file>./gutenberg.php</file>
 	<file>./lib</file>