diff --git a/composer.json b/composer.json
index 440f4c454..de5bd70d3 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
   "license": "GPLv2",
   "require": {
     "php": ">=7.4",
-    "yahnis-elsts/plugin-update-checker": "4.13",
+    "yahnis-elsts/plugin-update-checker": "5.1",
     "ua-parser/uap-php": "dev-master"
   },
   "autoload": {
@@ -42,4 +42,4 @@
       "!/vendor/"
     ]
   }
-}
\ No newline at end of file
+}
diff --git a/composer.lock b/composer.lock
index 370131262..3bd482197 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "d639edc8e5a46bb27962d4b225e48456",
+    "content-hash": "eac83010094406077b2bc944e936a9c2",
     "packages": [
         {
             "name": "composer/ca-bundle",
@@ -149,26 +149,26 @@
         },
         {
             "name": "yahnis-elsts/plugin-update-checker",
-            "version": "v4.13",
+            "version": "v5.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/YahnisElsts/plugin-update-checker.git",
-                "reference": "6eb27a6911e0e0880d09e5b11f577d3f688f7da7"
+                "reference": "48b03e93c9c2587f9276dce00ce2b6d94c1190d2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/YahnisElsts/plugin-update-checker/zipball/6eb27a6911e0e0880d09e5b11f577d3f688f7da7",
-                "reference": "6eb27a6911e0e0880d09e5b11f577d3f688f7da7",
+                "url": "https://api.github.com/repos/YahnisElsts/plugin-update-checker/zipball/48b03e93c9c2587f9276dce00ce2b6d94c1190d2",
+                "reference": "48b03e93c9c2587f9276dce00ce2b6d94c1190d2",
                 "shasum": ""
             },
             "require": {
                 "ext-json": "*",
-                "php": ">=5.2.0"
+                "php": ">=5.6.20"
             },
             "type": "library",
             "autoload": {
                 "files": [
-                    "load-v4p13.php"
+                    "load-v5p1.php"
                 ]
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -179,7 +179,7 @@
                 {
                     "name": "Yahnis Elsts",
                     "email": "whiteshadow@w-shadow.com",
-                    "homepage": "http://w-shadow.com/",
+                    "homepage": "https://w-shadow.com/",
                     "role": "Developer"
                 }
             ],
@@ -193,9 +193,9 @@
             ],
             "support": {
                 "issues": "https://github.com/YahnisElsts/plugin-update-checker/issues",
-                "source": "https://github.com/YahnisElsts/plugin-update-checker/tree/v4.13"
+                "source": "https://github.com/YahnisElsts/plugin-update-checker/tree/v5.1"
             },
-            "time": "2022-07-29T12:36:25+00:00"
+            "time": "2023-05-20T11:55:43+00:00"
         }
     ],
     "packages-dev": [
@@ -2695,7 +2695,7 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": {
-        "php": ">=7.2"
+        "php": ">=7.4"
     },
     "platform-dev": [],
     "plugin-api-version": "2.3.0"
diff --git a/includes/Classifai/Admin/Update.php b/includes/Classifai/Admin/Update.php
index dee70034f..69b0d2530 100644
--- a/includes/Classifai/Admin/Update.php
+++ b/includes/Classifai/Admin/Update.php
@@ -7,7 +7,7 @@
 
 namespace Classifai\Admin;
 
-use Puc_v4_Factory;
+use YahnisElsts\PluginUpdateChecker\v5\PucFactory;
 
 /**
  * Plugin update class.
@@ -24,7 +24,7 @@ class Update {
 	/**
 	 * The update checker object.
 	 *
-	 * @var Puc_v4p13_Plugin_UpdateChecker
+	 * @var YahnisElsts\PluginUpdateChecker\v5p1\Vcs\PluginUpdateChecker
 	 */
 	protected $updater;
 
@@ -34,7 +34,7 @@ class Update {
 	 * @return bool
 	 */
 	public function can_register() {
-		return class_exists( '\Puc_v4_Factory' ) && self::license_check();
+		return class_exists( '\YahnisElsts\PluginUpdateChecker\v5\PucFactory' ) && self::license_check();
 	}
 
 	/**
@@ -52,7 +52,7 @@ public function register() {
 	 * @return void
 	 */
 	public function init() {
-		$this->updater = Puc_v4_Factory::buildUpdateChecker(
+		$this->updater = PucFactory::buildUpdateChecker(
 			self::$repo_url,
 			CLASSIFAI_PLUGIN,
 			'classifai'
@@ -87,7 +87,9 @@ public function maybe_update( $transient ) {
 
 			// Adding the plugin info to the `no_update` property is required
 			// for the enable/disable auto-update links to appear correctly in the UI.
-			$transient->no_update[ $update->filename ] = $update;
+			if ( $update ) {
+				$transient->no_update[ $update->filename ] = $update;
+			}
 		}
 
 		return $transient;