diff --git a/utils.inc.php b/utils.inc.php
index e11d416..82bdd9e 100644
--- a/utils.inc.php
+++ b/utils.inc.php
@@ -283,6 +283,12 @@ function removePhpFpmConfig($user)
   exec('service ' . $_SERVER['phpservice'] . ' reload', $output);
 }
 
+function upgradeWiki($srcDir, $destDir)
+{
+  $output = 'Update ' . $destDir;
+  return $output;
+}
+
 function copyYesWikiFiles($domain, $user, $dbUser, $herseUser = null, $hersePass = null, $nossl = null)
 {
   $tmpFile = '/tmp/yeswiki.zip';
@@ -343,13 +349,15 @@ function addStatistics()
 
 }
 
-function searchWikis($path, $pattern)
+function searchWikis($path, $pattern, $depth = 1)
 {
   $it = new RecursiveDirectoryIterator($path);
   $list = array();
   $httpClient = HttpClientBuilder::buildDefault();
   $nb = 0;
-  foreach (new RecursiveIteratorIterator($it) as $file) {
+  $files = new RecursiveIteratorIterator($it);
+  $files->setMaxDepth($depth);
+  foreach ($files as $file) {
     if (preg_match('/' . preg_quote($pattern) . '$/i', $file)) {
       $nb++;
       $wakkaConfig = [];
diff --git a/yeswiki-updater.php b/yeswiki-updater.php
index 8a792d8..2f79dbf 100755
--- a/yeswiki-updater.php
+++ b/yeswiki-updater.php
@@ -7,8 +7,9 @@ use DevCoder\DotEnv;
 
 $climate = new League\CLImate\CLImate();
 $climate->description('yeswiki-updater, find and update YesWiki like a professionnal 🌈🦄');
+$isRoot = (0 == posix_getuid());
 
-if (0 == posix_getuid()) {
+if ($isRoot) {
   $absolutePathToEnvFile = __DIR__ . '/.env';
   if (file_exists($absolutePathToEnvFile)) {
     (new DotEnv($absolutePathToEnvFile))->load();
@@ -36,6 +37,12 @@ if (0 == posix_getuid()) {
       'description'  => 'Update to latest version of stable yeswiki',
       'noValue' => true
     ],
+    'depth' => [
+      'prefix'       => 'd',
+      'longPrefix'   => 'depth',
+      'description'  => 'Depth to scan folders for wikis',
+      'defaultValue' => 1
+    ],
   ]);
   try {
     $climate->arguments->parse();
@@ -51,29 +58,49 @@ if (0 == posix_getuid()) {
     try {
       $update = $climate->arguments->get('update');
       $output = $climate->arguments->get('output');
-      $matches = searchWikis($path, 'wakka.config.php');
-      if (count($matches) > 0 && $update) {
-        $climate->info('update');
+      $depth = $climate->arguments->get('depth');
+      $matches = searchWikis($path, 'wakka.config.php', $depth);
+      if (count($matches) == 0) {
+        $climate->info('No yeswiki found on path ' . $path . ' with depth ' . $depth);
+        exit;
       }
-      $climate->info(count($matches) . ' yeswikis found on ' . $path);
-      switch ($output) {
+      if (count($matches) > 0 && $update) { // update yeswiki list
+        $climate->info('Update yeswiki');
+        $tmpFile = '/tmp/yeswiki.zip';
+        $destDir = '/tmp/yeswiki_for_update';
+        exec('rm -rf ' . $destDir . ' && mkdir -p ' . $destDir, $output);
+        if (file_exists($tmpFile)) {
+          unlink($tmpFile);
+        }
+        exec('curl --insecure -s -o ' . $tmpFile . ' ' . $_SERVER['source_archive_url']);
+        exec('unzip ' . $tmpFile . ' "doryphore/*" -d ' . $destDir);
+        exec('mv ' . $destDir . '/doryphore/* ' . $destDir . '/');
+        exec('rm -rf ' . $destDir . '/doryphore');
+        unlink($tmpFile);
+        foreach ($matches as $k => $wiki) {
+          $climate->info(upgradeWiki($destDir, $wiki['PATH']));
+        }
+      } else { // show yeswiki list info
+        $climate->info(count($matches) . ' yeswikis found on ' . $path);
+        switch ($output) {
 
-        case 'table':
-          $climate->table($matches);
-          break;
+          case 'table':
+            $climate->table($matches);
+            break;
 
-        case 'json':
-          $climate->json($matches);
-          break;
+          case 'json':
+            $climate->json($matches);
+            break;
 
-        case 'csv':
-          $fileName = 'yeswiki-list.csv';
-          $file = fopen($fileName, "w");
-          foreach ($matches as $line) {
-            fputcsv($file, $line);
-          }
-          $climate->info($fileName . ' was created.');
-          break;
+          case 'csv':
+            $fileName = 'yeswiki-list.csv';
+            $file = fopen($fileName, "w");
+            foreach ($matches as $line) {
+              fputcsv($file, $line);
+            }
+            $climate->info($fileName . ' was created.');
+            break;
+        }
       }
     } catch (Exception $e) {
       $climate->error('ERROR : ' . $e->getMessage());