diff --git a/composer.json b/composer.json
index c8858b6..651f1f8 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,7 @@
 	},
 	"require-dev": {
 		"firephp/firephp-core": "~0.4.0",
-		"leafo/scssphp": "~0.6.6",
+		"leafo/scssphp": "^0.3 || ^0.6 || ^0.7",
 		"marcusschwarz/lesserphp": "~0.5.1",
 		"meenie/javascript-packer": "~1.1",
 		"phpunit/phpunit": "^4.8.36",
diff --git a/tests/ScssSourceTest.php b/tests/ScssSourceTest.php
index aa2cdf9..2a2dec9 100644
--- a/tests/ScssSourceTest.php
+++ b/tests/ScssSourceTest.php
@@ -8,10 +8,6 @@ class ScssSourceTest extends TestCase
 {
     public function setUp()
     {
-        if (version_compare(PHP_VERSION, '5.4.0', '<')) {
-            $this->markTestSkipped('scssphp is not compatible with this PHP version.');
-        }
-
         $this->realDocRoot = $_SERVER['DOCUMENT_ROOT'];
         $_SERVER['DOCUMENT_ROOT'] = self::$document_root;
     }