diff --git a/composer.json b/composer.json
index b9a75e56..194f88be 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "source": "https://github.com/onelogin/php-saml/"
     },
     "require": {
-        "php": ">=5.3.2",
+        "php": "^8.0.10",
         "ext-curl": "*",
         "ext-openssl": "*",
         "ext-dom": "*",
@@ -26,12 +26,12 @@
         "psr/log": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.8",
+        "phpunit/phpunit": "8.5.19",
         "satooshi/php-coveralls": "1.0.1",
         "sebastian/phpcpd": "*",
         "phploc/phploc": "*",
         "pdepend/pdepend" : "1.1.0",
-        "squizlabs/php_codesniffer": "2.9.0"
+        "squizlabs/php_codesniffer": "3.6.0"
     },
     "suggest": {
         "ext-gettext": "Install gettext and php5-gettext libs to handle translations"
diff --git a/lib/Saml2/Utils.php b/lib/Saml2/Utils.php
index 2669926d..f499dd72 100644
--- a/lib/Saml2/Utils.php
+++ b/lib/Saml2/Utils.php
@@ -88,9 +88,7 @@ public static function loadXML($dom, $xml)
             throw new Exception('Detected use of ENTITY in XML, disabled to prevent XXE/XEE attacks');
         }
 
-        $oldEntityLoader = libxml_disable_entity_loader(true);
         $res = $dom->loadXML($xml);
-        libxml_disable_entity_loader($oldEntityLoader);
 
         if (!$res) {
             return false;
@@ -131,9 +129,7 @@ public static function validateXML($xml, $schema, $debug = false)
         }
 
         $schemaFile = __DIR__.'/schemas/' . $schema;
-        $oldEntityLoader = libxml_disable_entity_loader(false);
         $res = $dom->schemaValidate($schemaFile);
-        libxml_disable_entity_loader($oldEntityLoader);
         if (!$res) {
             $xmlErrors = libxml_get_errors();
             syslog(LOG_INFO, 'Error validating the metadata: '.var_export($xmlErrors, true));