diff --git a/composer.json b/composer.json
index 2fb1af2..8f64bc8 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
 		"php": "^5.3.0 || ^7.0 || ^8.0",
 		"ext-pcre": "*",
 		"intervention/httpauth": "^2.0|^3.0",
-		"marcusschwarz/lesserphp": "^0.5.1",
+		"marcusschwarz/lesserphp": "^0.5.5",
 		"monolog/monolog": "~1.1|~2.0",
 		"mrclay/jsmin-php": "~2",
 		"mrclay/props-dic": "^2.2|^3.0",
diff --git a/tests/LessSourceTest.php b/tests/LessSourceTest.php
index 225a0b5..16c0715 100644
--- a/tests/LessSourceTest.php
+++ b/tests/LessSourceTest.php
@@ -4,10 +4,6 @@ namespace Minify\Test;
 
 use Minify_HTML_Helper;
 
-/**
- * @requires php < 7.3
- * @see https://github.com/mrclay/minify/pull/685
- */
 class LessSourceTest extends TestCase
 {
     public function setUp()