diff --git a/classes/plagiarism_pchkorg_api_provider.php b/classes/plagiarism_pchkorg_api_provider.php
index 3d3a484..2067e10 100644
--- a/classes/plagiarism_pchkorg_api_provider.php
+++ b/classes/plagiarism_pchkorg_api_provider.php
@@ -603,13 +603,13 @@ class plagiarism_pchkorg_api_provider {
      */
     public function is_supported_mime($mime) {
         return in_array($mime, array(
-                'application/msword',
-                'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
-                'application/rtf',
-                'application/vnd.oasis.opendocument.text',
-                'text/plain',
-                'plain/text',
-                'application/pdf',
+            'application/msword',
+            'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+            'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+            'application/rtf',
+            'application/vnd.oasis.opendocument.text',
+            'text/plain',
+            'application/pdf'
         ), true);
     }
 
diff --git a/version.php b/version.php
index c81fee8..3f7d355 100644
--- a/version.php
+++ b/version.php
@@ -26,9 +26,9 @@ defined('MOODLE_INTERNAL') || die();
 if (!isset($plugin)) {
     $plugin = new stdClass();
 }
-$plugin->version = 2022072914;
+$plugin->version = 2022092613;
 $plugin->requires = 2020061501; // Requires Moodle 3.9 .
-$plugin->release = 'v3.10.2';
+$plugin->release = 'v3.11.1';
 $plugin->component = 'plagiarism_pchkorg';
 $plugin->maturity = MATURITY_STABLE;
 $plugin->dependencies = array(