diff --git a/core/class-bibtex-import.php b/core/class-bibtex-import.php
index 595affb..9ec4ba0 100644
--- a/core/class-bibtex-import.php
+++ b/core/class-bibtex-import.php
@@ -30,9 +30,8 @@ public static function init ($input, $settings, $test = false) {
         $import_id = ( $test === false ) ? tp_publication_imports::add_import() : 0;
         
         // Init bibtexParse
-        global $PARSEENTRIES;
         $input = tp_bibtex::convert_bibtex_to_utf8($input);
-        $parse = NEW PARSEENTRIES();
+        $parse = NEW BIBTEXPARSE();
         $parse->expandMacro = TRUE;
         $array = array('RMP' => 'Rev., Mod. Phys.');
         $parse->loadStringMacro($array);
@@ -258,7 +257,6 @@ public static function init ($entry, $key, $mode) {
     
     /**
      * This function can detect the name format automatically
-     * @global class $PARSECREATORS
      * @param array $entry
      * @param string $key
      * @return string
@@ -266,8 +264,7 @@ public static function init ($entry, $key, $mode) {
      * @access private
      */
     private static function dynamic_mode ($entry, $key) {
-        global $PARSECREATORS;
-        $creator = new PARSECREATORS();
+        $creator = new BIBTEXCREATORPARSE();
         $creatorArray = $creator->parse( $entry[$key] );
         // print_r($creatorArray);
         $string = '';
diff --git a/core/class-bibtex.php b/core/class-bibtex.php
index e2c62ad..546f6ce 100644
--- a/core/class-bibtex.php
+++ b/core/class-bibtex.php
@@ -396,14 +396,12 @@ public static function explode_url ($url_string) {
     
     /**
      * The function splits a author/editor name and returns the lastname or NULL if there is no name was found
-     * @global $PARSECREATORS
      * @param string $input     A name of an author or editor
      * @return string
      * @since 5.0.0
      */
     public static function get_lastname ($input) {
-        global $PARSECREATORS;
-        $creator = new PARSECREATORS();
+        $creator = new BIBTEXCREATORPARSE();
         $creatorArray = $creator->parse($input);
         if ( isset( $creatorArray[0][2] ) ) {
             return trim($creatorArray[0][2]);
@@ -446,11 +444,10 @@ public static function parse_author ($input, $separator, $mode = '') {
      * @return string
      * @since 5.0.0
      * @access public
-     * @uses PARSECREATORS()    This class is a part of bibtexParse
+     * @uses BIBTEXCREATORPARSE()    This class is a part of bibtexParse
      */
     public static function parse_author_default ($input, $separator = ';', $mode = 'initials') {
-        global $PARSECREATORS;
-        $creator = new PARSECREATORS();
+        $creator = new BIBTEXCREATORPARSE();
         $creatorArray = $creator->parse($input);
         $all_authors = '';
         $max = count($creatorArray);
diff --git a/readme.txt b/readme.txt
index 1be2092..99caa09 100644
--- a/readme.txt
+++ b/readme.txt
@@ -70,7 +70,7 @@ The plugin saves course documents in your WordPress upload directory under /teac
 
 == Credits ==
 
-Copyright 2008-2020 by Michael Winkler
+Copyright 2008-2021 by Michael Winkler
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -87,7 +87,7 @@ along with this program; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 = Licence information of external resources =
-* bibtexParse by Mark Grimshaw & Guillaume Gardey (Licence: GPL)
+* Wikindx bibtex import classes (bibtexParse) by Mark Grimshaw-Aagaard & Stéphane Aulery (Licence: ISC License)
 * Font Awesome Free 5.10.1 by fontawesome (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
 * Academicons 1.8.6 by James Walsh (Font: SIL OFL 1.1, CSS: MIT License)
 * jquery-ui-icons.png by The jQuery Foundation (License: MIT)
@@ -123,6 +123,9 @@ Please note the [teachPress 6.0 Upgrade Information](https://mtrv.wordpress.com/
 
 == Changelog ==
 
+= x.x.x =
+* Changed: Update bibtexParse to v2.5 
+
 = 7.1.3 (04.11.2020) = 
 * Bugfix: Adding image URL no longer working with WordPress 5.5
 
diff --git a/teachpress.php b/teachpress.php
index 1f8a04f..b7f4406 100644
--- a/teachpress.php
+++ b/teachpress.php
@@ -92,10 +92,10 @@
     include_once("admin/show-students.php");
 }
 
-// BibTeX Parse
-if ( !class_exists( 'PARSEENTRIES' ) ) {
-    include_once("includes/bibtexParse/PARSEENTRIES.php");
-    include_once("includes/bibtexParse/PARSECREATORS.php");
+// BibTeX Parse v2.5
+if ( !class_exists( 'BIBTEXPARSE' ) ) {
+    include_once("includes/bibtexParse/BIBTEXPARSE.php");
+    include_once("includes/bibtexParse/BIBTEXCREATORPARSE.php");
 }
 
 /*********/