diff --git a/index.php b/index.php
index aaf448a8..0204ae17 100644
--- a/index.php
+++ b/index.php
@@ -670,6 +670,8 @@ private function getDownloadURLs(): array {
 				continue;
 			}
 
+			// If only one download URL exists, $urls is a string
+			$urls = (array)$urls;
 			foreach ($urls as $url) {
 				if (!is_string($url)) {
 					continue;
diff --git a/lib/Updater.php b/lib/Updater.php
index 0d087e1a..ef1c5205 100644
--- a/lib/Updater.php
+++ b/lib/Updater.php
@@ -652,6 +652,8 @@ private function getDownloadURLs(): array {
 				continue;
 			}
 
+			// If only one download URL exists, $urls is a string
+			$urls = (array)$urls;
 			foreach ($urls as $url) {
 				if (!is_string($url)) {
 					continue;
diff --git a/updater.phar b/updater.phar
index b8a20921..82924958 100755
Binary files a/updater.phar and b/updater.phar differ
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index 37bad8c4..173bf8d5 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -16,7 +16,7 @@ class ComposerStaticInitcbbead1010db4afef500f7adc2b6cac3
     );
 
     public static $prefixLengthsPsr4 = array (
-        'S' => 
+        'S' =>
         array (
             'Symfony\\Polyfill\\Mbstring\\' => 26,
             'Symfony\\Polyfill\\Intl\\Normalizer\\' => 33,
@@ -26,58 +26,58 @@ class ComposerStaticInitcbbead1010db4afef500f7adc2b6cac3
             'Symfony\\Component\\String\\' => 25,
             'Symfony\\Component\\Console\\' => 26,
         ),
-        'P' => 
+        'P' =>
         array (
             'Psr\\Container\\' => 14,
         ),
-        'N' => 
+        'N' =>
         array (
             'NC\\Updater\\' => 11,
         ),
-        'B' => 
+        'B' =>
         array (
             'Bamarni\\Composer\\Bin\\' => 21,
         ),
     );
 
     public static $prefixDirsPsr4 = array (
-        'Symfony\\Polyfill\\Mbstring\\' => 
+        'Symfony\\Polyfill\\Mbstring\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/polyfill-mbstring',
         ),
-        'Symfony\\Polyfill\\Intl\\Normalizer\\' => 
+        'Symfony\\Polyfill\\Intl\\Normalizer\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/polyfill-intl-normalizer',
         ),
-        'Symfony\\Polyfill\\Intl\\Grapheme\\' => 
+        'Symfony\\Polyfill\\Intl\\Grapheme\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/polyfill-intl-grapheme',
         ),
-        'Symfony\\Polyfill\\Ctype\\' => 
+        'Symfony\\Polyfill\\Ctype\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/polyfill-ctype',
         ),
-        'Symfony\\Contracts\\Service\\' => 
+        'Symfony\\Contracts\\Service\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/service-contracts',
         ),
-        'Symfony\\Component\\String\\' => 
+        'Symfony\\Component\\String\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/string',
         ),
-        'Symfony\\Component\\Console\\' => 
+        'Symfony\\Component\\Console\\' =>
         array (
             0 => __DIR__ . '/..' . '/symfony/console',
         ),
-        'Psr\\Container\\' => 
+        'Psr\\Container\\' =>
         array (
             0 => __DIR__ . '/..' . '/psr/container/src',
         ),
-        'NC\\Updater\\' => 
+        'NC\\Updater\\' =>
         array (
             0 => __DIR__ . '/../..' . '/lib',
         ),
-        'Bamarni\\Composer\\Bin\\' => 
+        'Bamarni\\Composer\\Bin\\' =>
         array (
             0 => __DIR__ . '/..' . '/bamarni/composer-bin-plugin/src',
         ),