diff --git a/integration/lib/com/wiris/util/json/JSonIntegerFormat.class.php b/integration/lib/com/wiris/util/json/JSonIntegerFormat.class.php
diff --git a/integration/lib/com/wiris/util/json/StringParser.class.php b/integration/lib/com/wiris/util/json/StringParser.class.php
diff --git a/integration/lib/com/wiris/util/json/parser/ExtractedString.class.php b/integration/lib/com/wiris/util/json/parser/ExtractedString.class.php
@@ -0,0 +1,22 @@
+<?php
+
+class com_wiris_util_json_parser_ExtractedString {
+	public function __construct($sourceEnd, $str) {
+		if(!php_Boot::$skip_constructor) {
+		$this->sourceEnd = $sourceEnd;
+		$this->str = $str;
+	}}
+	public $str;
+	public $sourceEnd;
+	public function __call($m, $a) {
+		if(isset($this->$m) && is_callable($this->$m))
+			return call_user_func_array($this->$m, $a);
+		else if(isset($this->»dynamics[$m]) && is_callable($this->»dynamics[$m]))
+			return call_user_func_array($this->»dynamics[$m], $a);
+		else if('toString' == $m)
+			return $this->__toString();
+		else
+			throw new HException('Unable to call «'.$m.'»');
+	}
+	function __toString() { return 'com.wiris.util.json.parser.ExtractedString'; }
+}
diff --git a/integration/lib/com/wiris/util/json/parser/JType.enum.php b/integration/lib/com/wiris/util/json/parser/JType.enum.php
@@ -0,0 +1,19 @@
+<?php
+
+class com_wiris_util_json_parser_JType extends Enum {
+	public static $TYPE_ARRAY;
+	public static $TYPE_CONSTANT;
+	public static $TYPE_HEURISTIC;
+	public static $TYPE_NAME;
+	public static $TYPE_NUMBER;
+	public static $TYPE_OBJECT;
+	public static $TYPE_STRING;
+	public static $__constructors = array(0 => 'TYPE_ARRAY', 6 => 'TYPE_CONSTANT', 2 => 'TYPE_HEURISTIC', 3 => 'TYPE_NAME', 5 => 'TYPE_NUMBER', 1 => 'TYPE_OBJECT', 4 => 'TYPE_STRING');
+	}
+com_wiris_util_json_parser_JType::$TYPE_ARRAY = new com_wiris_util_json_parser_JType("TYPE_ARRAY", 0);
+com_wiris_util_json_parser_JType::$TYPE_CONSTANT = new com_wiris_util_json_parser_JType("TYPE_CONSTANT", 6);
+com_wiris_util_json_parser_JType::$TYPE_HEURISTIC = new com_wiris_util_json_parser_JType("TYPE_HEURISTIC", 2);
+com_wiris_util_json_parser_JType::$TYPE_NAME = new com_wiris_util_json_parser_JType("TYPE_NAME", 3);
+com_wiris_util_json_parser_JType::$TYPE_NUMBER = new com_wiris_util_json_parser_JType("TYPE_NUMBER", 5);
+com_wiris_util_json_parser_JType::$TYPE_OBJECT = new com_wiris_util_json_parser_JType("TYPE_OBJECT", 1);
+com_wiris_util_json_parser_JType::$TYPE_STRING = new com_wiris_util_json_parser_JType("TYPE_STRING", 4);
diff --git a/integration/lib/com/wiris/util/json/parser/JsonParse.class.php b/integration/lib/com/wiris/util/json/parser/JsonParse.class.php
diff --git a/integration/lib/com/wiris/util/json/parser/State.class.php b/integration/lib/com/wiris/util/json/parser/State.class.php
@@ -0,0 +1,24 @@
+<?php
+
+class com_wiris_util_json_parser_State {
+	public function __construct($propertyName, $container, $type) {
+		if(!php_Boot::$skip_constructor) {
+		$this->propertyName = $propertyName;
+		$this->container = $container;
+		$this->type = $type;
+	}}
+	public $type;
+	public $container;
+	public $propertyName;
+	public function __call($m, $a) {
+		if(isset($this->$m) && is_callable($this->$m))
+			return call_user_func_array($this->$m, $a);
+		else if(isset($this->»dynamics[$m]) && is_callable($this->»dynamics[$m]))
+			return call_user_func_array($this->»dynamics[$m], $a);
+		else if('toString' == $m)
+			return $this->__toString();
+		else
+			throw new HException('Unable to call «'.$m.'»');
+	}
+	function __toString() { return 'com.wiris.util.json.parser.State'; }
+}
diff --git a/integration/lib/com/wiris/util/xml/WCharacterBase.class.php b/integration/lib/com/wiris/util/xml/WCharacterBase.class.php
diff --git a/integration/lib/tech.txt b/integration/lib/tech.txt
@@ -1 +1 @@
-php
+php
diff --git a/integration/resource.php b/integration/resource.php
diff --git a/thirdpartylibs.xml b/thirdpartylibs.xml
@@ -3,7 +3,7 @@
     <library>
         <location>integration</location>
         <name>MathType Web Integration PHP library</name>
-        <version>7.23.0</version>
+        <version>7.28.1</version>
         <license>GPL</license>
         <licenseversion>3.0+</licenseversion>
     </library>