diff --git a/src/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php b/src/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php
index e127bb439..7f237fa78 100644
--- a/src/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php
+++ b/src/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php
@@ -192,8 +192,8 @@ class REST_Background_Processes_Controller extends REST_Controller {
         $process_type = '';
         if (isset($request['search'])) {
             $name = $request['search'];
-            $process_type = "AND name LIKE '%$name%'";
-            $process_type = $wpdb->prepare($process_type);
+            $search_term_like = '%' . $wpdb->esc_like($name) . '%';
+            $process_type = $wpdb->prepare("AND name LIKE %s", $search_term_like);
         }
 
 		$recent_q = '';
diff --git a/src/readme.txt b/src/readme.txt
index d3853b026..091600898 100644
--- a/src/readme.txt
+++ b/src/readme.txt
@@ -4,7 +4,7 @@ Tags: museums, archives, GLAM, collections, repository
 Requires at least: 5.9
 Tested up to: 6.6
 Requires PHP: 7.0
-Stable tag: 0.21.8
+Stable tag: 0.21.9
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-3.0.html
 
diff --git a/src/tainacan.php b/src/tainacan.php
index 069afad32..acbde7645 100644
--- a/src/tainacan.php
+++ b/src/tainacan.php
@@ -5,17 +5,17 @@ Plugin URI: https://tainacan.org/
 Description: Open source, powerful and flexible repository platform for WordPress. Manage and publish you digital collections as easily as publishing a post to your blog, while having all the tools of a professional repository platform.
 Author: Tainacan.org
 Author URI: https://tainacan.org/
-Version: 0.21.8
+Version: 0.21.9
 Requires at least: 5.9
 Tested up to: 6.6
 Requires PHP: 7.0
-Stable tag: 0.21.8
+Stable tag: 0.21.9
 Text Domain: tainacan
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-3.0.html
 */
 
-const TAINACAN_VERSION = '0.21.8';
+const TAINACAN_VERSION = '0.21.9';
 
 defined( 'ABSPATH' ) or die( 'No script kiddies please!' );
 $TAINACAN_BASE_URL = plugins_url('', __FILE__);