diff --git a/system/src/Grav/Common/GPM/GPM.php b/system/src/Grav/Common/GPM/GPM.php
index d4690c272..4baeafe42 100644
--- a/system/src/Grav/Common/GPM/GPM.php
+++ b/system/src/Grav/Common/GPM/GPM.php
@@ -10,6 +10,7 @@
 namespace Grav\Common\GPM;
 
 use Exception;
+use Grav\Common\Data\Data;
 use Grav\Common\Grav;
 use Grav\Common\Filesystem\Folder;
 use Grav\Common\HTTP\Response;
@@ -24,6 +25,7 @@ use function count;
 use function in_array;
 use function is_array;
 use function is_object;
+use function property_exists;
 
 /**
  * Class GPM
@@ -322,6 +324,10 @@ class GPM extends Iterator
                 continue;
             }
 
+            if (!$this->isRemotePackagePublished($plugins[$slug])) {
+                continue;
+            }
+
             $local_version = $plugin->version ?? 'Unknown';
             $remote_version = $plugins[$slug]->version;
 
@@ -414,6 +420,10 @@ class GPM extends Iterator
                 continue;
             }
 
+            if (!$this->isRemotePackagePublished($themes[$slug])) {
+                continue;
+            }
+
             $local_version = $plugin->version ?? 'Unknown';
             $remote_version = $themes[$slug]->version;
 
@@ -468,6 +478,42 @@ class GPM extends Iterator
         return null;
     }
 
+    /**
+     * Determine whether a remote package is marked as published.
+     *
+     * Remote package metadata introduced a `published` flag to hide releases that are not yet public.
+     * Older repository payloads may omit the key, so we default to treating packages as published
+     * unless the flag is explicitly set to `false`.
+     *
+     * @param object|array $package
+     * @return bool
+     */
+    protected function isRemotePackagePublished($package): bool
+    {
+        if (is_object($package) && method_exists($package, 'getData')) {
+            $data = $package->getData();
+            if ($data instanceof Data) {
+                $published = $data->get('published');
+                return $published !== false;
+            }
+        }
+
+        if (is_array($package)) {
+            if (array_key_exists('published', $package)) {
+                return $package['published'] !== false;
+            }
+
+            return true;
+        }
+
+        $value = null;
+        if (is_object($package) && property_exists($package, 'published')) {
+            $value = $package->published;
+        }
+
+        return $value !== false;
+    }
+
     /**
      * Returns true if the package latest release is stable
      *
diff --git a/system/src/Grav/Common/Upgrade/SafeUpgradeService.php b/system/src/Grav/Common/Upgrade/SafeUpgradeService.php
index c03431ea0..c724f5473 100644
--- a/system/src/Grav/Common/Upgrade/SafeUpgradeService.php
+++ b/system/src/Grav/Common/Upgrade/SafeUpgradeService.php
@@ -10,6 +10,7 @@
 namespace Grav\Common\Upgrade;
 
 use DirectoryIterator;
+use Grav\Common\Data\Data;
 use Grav\Common\Filesystem\Folder;
 use Grav\Common\GPM\GPM;
 use Grav\Common\Grav;
@@ -20,6 +21,7 @@ use Throwable;
 use RecursiveDirectoryIterator;
 use RecursiveIteratorIterator;
 use FilesystemIterator;
+use function array_key_exists;
 use function basename;
 use function copy;
 use function count;
@@ -33,6 +35,7 @@ use function is_file;
 use function json_decode;
 use function json_encode;
 use function preg_match;
+use function property_exists;
 use function rename;
 use function rsort;
 use function sort;
@@ -438,6 +441,10 @@ class SafeUpgradeService
                 continue;
             }
             foreach ($packages as $slug => $package) {
+                if (!$this->isGpmPackagePublished($package)) {
+                    continue;
+                }
+
                 $pending[$slug] = [
                     'type' => $type,
                     'current' => $package->version ?? null,
@@ -449,6 +456,41 @@ class SafeUpgradeService
         return $pending;
     }
 
+    /**
+     * Determine if the provided GPM package metadata is marked as published.
+     *
+     * By default the GPM repository omits the `published` flag, so we only treat the package as unpublished
+     * when the value exists and evaluates to `false`.
+     *
+     * @param mixed $package
+     * @return bool
+     */
+    protected function isGpmPackagePublished($package): bool
+    {
+        if (is_object($package) && method_exists($package, 'getData')) {
+            $data = $package->getData();
+            if ($data instanceof Data) {
+                $published = $data->get('published');
+                return $published !== false;
+            }
+        }
+
+        if (is_array($package)) {
+            if (array_key_exists('published', $package)) {
+                return $package['published'] !== false;
+            }
+
+            return true;
+        }
+
+        $value = null;
+        if (is_object($package) && property_exists($package, 'published')) {
+            $value = $package->published;
+        }
+
+        return $value !== false;
+    }
+
     /**
      * Check plugins for psr/log requirements that conflict with Grav 1.8 vendor stack.
      *