diff --git a/index.php b/index.php
index 2d630209..b4166ef0 100644
--- a/index.php
+++ b/index.php
@@ -27,9 +27,6 @@ class LogException extends \Exception {
 }
 
 
-use Closure;
-use CurlHandle;
-
 class Updater {
 	/** @var int */
 	public const LAST_STEP = 12;
@@ -51,7 +48,7 @@ class Updater {
 
 	private int $previousProgress = 0;
 
-	private ?Closure $downloadProgress = null;
+	private ?\Closure $downloadProgress = null;
 
 	/**
 	 * Updater constructor
@@ -617,7 +614,7 @@ private function getUpdateServerResponse(): array {
 	 *
 	 * @throws \Exception
 	 */
-	public function downloadUpdate(string $url = '', ?Closure $downloadProgress = null): void {
+	public function downloadUpdate(string $url = '', ?\Closure $downloadProgress = null): void {
 		$this->silentLog('[info] downloadUpdate()');
 		$this->downloadProgress = $downloadProgress;
 
@@ -694,7 +691,7 @@ private function getDownloadURLs(): array {
 
 	}
 
-	private function getCurl(string $url): CurlHandle {
+	private function getCurl(string $url): \CurlHandle {
 		$ch = curl_init($url);
 		if ($ch === false) {
 			throw new \Exception('Fail to open cUrl handler');
@@ -773,7 +770,7 @@ private function isAbleToDecompress(string $ext): bool {
 		return $ext === 'zip' && extension_loaded($ext);
 	}
 
-	private function downloadProgressCallback(CurlHandle $resource, int $download_size, int $downloaded): void {
+	private function downloadProgressCallback(\CurlHandle $resource, int $download_size, int $downloaded): void {
 		if ($download_size !== 0) {
 			$progress = (int)round($downloaded * 100 / $download_size);
 			if ($progress > $this->previousProgress) {
diff --git a/lib/Updater.php b/lib/Updater.php
index 9a915277..d7a61cab 100644
--- a/lib/Updater.php
+++ b/lib/Updater.php
@@ -9,9 +9,6 @@
 
 namespace NC\Updater;
 
-use Closure;
-use CurlHandle;
-
 class Updater {
 	/** @var int */
 	public const LAST_STEP = 12;
@@ -33,7 +30,7 @@ class Updater {
 
 	private int $previousProgress = 0;
 
-	private ?Closure $downloadProgress = null;
+	private ?\Closure $downloadProgress = null;
 
 	/**
 	 * Updater constructor
@@ -599,7 +596,7 @@ private function getUpdateServerResponse(): array {
 	 *
 	 * @throws \Exception
 	 */
-	public function downloadUpdate(string $url = '', ?Closure $downloadProgress = null): void {
+	public function downloadUpdate(string $url = '', ?\Closure $downloadProgress = null): void {
 		$this->silentLog('[info] downloadUpdate()');
 		$this->downloadProgress = $downloadProgress;
 
@@ -676,7 +673,7 @@ private function getDownloadURLs(): array {
 
 	}
 
-	private function getCurl(string $url): CurlHandle {
+	private function getCurl(string $url): \CurlHandle {
 		$ch = curl_init($url);
 		if ($ch === false) {
 			throw new \Exception('Fail to open cUrl handler');
@@ -755,7 +752,7 @@ private function isAbleToDecompress(string $ext): bool {
 		return $ext === 'zip' && extension_loaded($ext);
 	}
 
-	private function downloadProgressCallback(CurlHandle $resource, int $download_size, int $downloaded): void {
+	private function downloadProgressCallback(\CurlHandle $resource, int $download_size, int $downloaded): void {
 		if ($download_size !== 0) {
 			$progress = (int)round($downloaded * 100 / $download_size);
 			if ($progress > $this->previousProgress) {
diff --git a/updater.phar b/updater.phar
index b851fb5c..74502472 100755
Binary files a/updater.phar and b/updater.phar differ