diff --git a/composer.json b/composer.json
index c2b3fd9..96101a2 100644
--- a/composer.json
+++ b/composer.json
@@ -10,15 +10,15 @@
 		}
 	],
 	"require": {
-		"php": ">=5.3.0",
-		"nette/di": "~2.3",
-		"nette/bootstrap": "~2.3"
+		"php": ">=7.1.0",
+		"nette/di": "~2.4",
+		"nette/bootstrap": "~2.4"
 	},
 	"require-dev": {
-		"nette/tester": "~1.4.0"
+		"nette/tester": "~2.3.0"
 	},
 	"conflict": {
-		"nette/nette": "<2.2"
+		"nette/nette": "<2.4"
 	},
 	"autoload": {
 		"classmap": ["src/"]
diff --git a/src/Adapters/XmlAdapter.php b/src/Adapters/XmlAdapter.php
index 7a9c92b..dec25d1 100644
--- a/src/Adapters/XmlAdapter.php
+++ b/src/Adapters/XmlAdapter.php
@@ -14,8 +14,9 @@
 /**
  * Reading and generating XML files.
  */
-class XmlAdapter extends Nette\Object implements Nette\DI\Config\IAdapter
+class XmlAdapter implements Nette\DI\Config\IAdapter
 {
+	use \Nette\SmartObject;
 
 	const NS = "http://www.sallyx.org/xmlns/nette/config/1.0";
 
diff --git a/tests/php-unix.ini b/tests/php-unix.ini
index 900fa6c..7f541be 100644
--- a/tests/php-unix.ini
+++ b/tests/php-unix.ini
@@ -1,6 +1,6 @@
 [PHP]
 ;extension_dir = "./ext"
-extension=json.so
-extension=tokenizer.so
+;extension=json.so
+;extension=tokenizer.so
 [Zend]
 ;zend_extension="./ext/zend_extension"