diff --git a/version.php b/version.php
index 39e3ad7..974bfa3 100644
--- a/version.php
+++ b/version.php
@@ -1,31 +1,31 @@
-<?php
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Version information for mod/pdfannotator
- *
- * @package   mod_pdfannotator
- * @copyright 2018 RWTH Aachen
- * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die();
-
-$plugin->component = 'mod_pdfannotator';
-$plugin->version   = 2021082600;
-$plugin->release  = 'PDF Annotator v1.4 release 8';
-$plugin->requires  = 2016112900;
-$plugin->maturity  = MATURITY_STABLE;
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Version information for mod/pdfannotator
+ *
+ * @package   mod_pdfannotator
+ * @copyright 2018 RWTH Aachen
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$plugin->component = 'mod_pdfannotator';
+$plugin->version   = 2021090100;
+$plugin->release  = 'PDF Annotator v1.4 release 9';
+$plugin->requires  = 2021051700;
+$plugin->maturity  = MATURITY_STABLE;