diff --git a/classes/admin.php b/classes/admin.php
index 3a348291..5884717a 100644
--- a/classes/admin.php
+++ b/classes/admin.php
@@ -523,21 +523,22 @@ class Admin
     }
 
     /**
-     * Get an array of dependencies needed to be installed or updated for a package
+     * Get an array of dependencies needed to be installed or updated for a list of packages
      * to be installed.
      *
-     * @param string $slug          The package slug
+     * @param array $packages The packages slugs
      *
      * @return array|bool
      */
-    public function getDependenciesNeededToInstall($slug)
+    public function getDependenciesNeededToInstall($packages)
     {
         $gpm = $this->gpm();
         if (!$gpm) {
             return false;
         }
 
-        $dependencies = $this->gpm->getDependencies([$slug]);
+        $dependencies = $this->gpm->getDependencies($packages);
+
 
         return $dependencies;
     }
diff --git a/classes/controller.php b/classes/controller.php
index 44413719..cd561cbd 100644
--- a/classes/controller.php
+++ b/classes/controller.php
@@ -266,7 +266,7 @@ class AdminController
         $data = $this->post;
         $package = isset($data['package']) ? $data['package'] : '';
 
-        $dependencies = $this->admin->getDependenciesNeededToInstall($package);
+        $dependencies = $this->admin->getDependenciesNeededToInstall([$package]);
 
         $this->admin->json_response = ['status' => 'success', 'dependencies' => $dependencies];
 
@@ -286,7 +286,7 @@ class AdminController
 
         require_once __DIR__ . '/gpm.php';
 
-        $dependencies = $this->admin->getDependenciesNeededToInstall($package);
+        $dependencies = $this->admin->getDependenciesNeededToInstall([$package]);
 
         $result = \Grav\Plugin\Admin\Gpm::install(array_keys($dependencies), ['theme' => ($type == 'theme')]);