diff --git a/framework/core/src/Foundation/InstalledApp.php b/framework/core/src/Foundation/InstalledApp.php
index 9cf4f0265..bc1e18601 100644
--- a/framework/core/src/Foundation/InstalledApp.php
+++ b/framework/core/src/Foundation/InstalledApp.php
@@ -70,12 +70,12 @@ class InstalledApp implements AppInterface
         return $pipe;
     }
 
-    private function inMaintenanceMode(): bool
+    protected function inMaintenanceMode(): bool
     {
         return $this->config['offline'] ?? false;
     }
 
-    private function needsUpdate(): bool
+    protected function needsUpdate(): bool
     {
         $settings = $this->container->make(SettingsRepositoryInterface::class);
         $version = $settings->get('version');
@@ -86,7 +86,7 @@ class InstalledApp implements AppInterface
     /**
      * @return \Psr\Http\Server\RequestHandlerInterface
      */
-    private function getUpdaterHandler()
+    protected function getUpdaterHandler()
     {
         $pipe = new MiddlewarePipe;
         $pipe->pipe(new BasePath($this->basePath()));
@@ -97,12 +97,12 @@ class InstalledApp implements AppInterface
         return $pipe;
     }
 
-    private function basePath(): string
+    protected function basePath(): string
     {
         return parse_url($this->config['url'], PHP_URL_PATH) ?: '/';
     }
 
-    private function subPath($pathName): string
+    protected function subPath($pathName): string
     {
         return '/'.($this->config['paths'][$pathName] ?? $pathName);
     }
diff --git a/framework/core/src/Foundation/InstalledSite.php b/framework/core/src/Foundation/InstalledSite.php
index 3008def05..4f9fbb265 100644
--- a/framework/core/src/Foundation/InstalledSite.php
+++ b/framework/core/src/Foundation/InstalledSite.php
@@ -52,17 +52,17 @@ class InstalledSite implements SiteInterface
     /**
      * @var Paths
      */
-    private $paths;
+    protected $paths;
 
     /**
      * @var array
      */
-    private $config;
+    protected $config;
 
     /**
      * @var \Flarum\Extend\ExtenderInterface[]
      */
-    private $extenders = [];
+    protected $extenders = [];
 
     public function __construct(Paths $paths, array $config)
     {
@@ -94,7 +94,7 @@ class InstalledSite implements SiteInterface
         return $this;
     }
 
-    private function bootLaravel(): Container
+    protected function bootLaravel(): Container
     {
         $container = new \Illuminate\Container\Container;
         $laravel = new Application($container, $this->paths);
@@ -153,7 +153,7 @@ class InstalledSite implements SiteInterface
      * @param Application $app
      * @return ConfigRepository
      */
-    private function getIlluminateConfig(Application $app)
+    protected function getIlluminateConfig(Application $app)
     {
         return new ConfigRepository([
             'view' => [
@@ -186,7 +186,7 @@ class InstalledSite implements SiteInterface
         ]);
     }
 
-    private function registerLogger(Container $container)
+    protected function registerLogger(Container $container)
     {
         $logPath = $this->paths->storage.'/logs/flarum.log';
         $handler = new RotatingFileHandler($logPath, Logger::INFO);
@@ -196,7 +196,7 @@ class InstalledSite implements SiteInterface
         $container->alias('log', LoggerInterface::class);
     }
 
-    private function registerCache(Container $container)
+    protected function registerCache(Container $container)
     {
         $container->singleton('cache.store', function ($container) {
             return new CacheRepository($container->make('cache.filestore'));
diff --git a/framework/core/src/Foundation/Site.php b/framework/core/src/Foundation/Site.php
index 54dfcb7e1..8c118196d 100644
--- a/framework/core/src/Foundation/Site.php
+++ b/framework/core/src/Foundation/Site.php
@@ -33,12 +33,12 @@ class Site
         }
     }
 
-    private static function hasConfigFile($basePath)
+    protected static function hasConfigFile($basePath)
     {
         return file_exists("$basePath/config.php");
     }
 
-    private static function loadConfig($basePath): array
+    protected static function loadConfig($basePath): array
     {
         $config = include "$basePath/config.php";
 
@@ -49,7 +49,7 @@ class Site
         return $config;
     }
 
-    private static function loadExtenders($basePath): array
+    protected static function loadExtenders($basePath): array
     {
         $extenderFile = "$basePath/extend.php";
 
diff --git a/framework/core/src/Foundation/UninstalledSite.php b/framework/core/src/Foundation/UninstalledSite.php
index 0f78e22bf..ac1ed279b 100644
--- a/framework/core/src/Foundation/UninstalledSite.php
+++ b/framework/core/src/Foundation/UninstalledSite.php
@@ -33,7 +33,7 @@ class UninstalledSite implements SiteInterface
     /**
      * @var Paths
      */
-    private $paths;
+    protected $paths;
 
     public function __construct(Paths $paths)
     {
@@ -52,7 +52,7 @@ class UninstalledSite implements SiteInterface
         );
     }
 
-    private function bootLaravel(): Container
+    protected function bootLaravel(): Container
     {
         $container = new \Illuminate\Container\Container;
         $laravel = new Application($container, $this->paths);
@@ -100,7 +100,7 @@ class UninstalledSite implements SiteInterface
     /**
      * @return ConfigRepository
      */
-    private function getIlluminateConfig()
+    protected function getIlluminateConfig()
     {
         return new ConfigRepository([
             'session' => [
@@ -114,7 +114,7 @@ class UninstalledSite implements SiteInterface
         ]);
     }
 
-    private function registerLogger(Container $container)
+    protected function registerLogger(Container $container)
     {
         $logPath = $this->paths->storage.'/logs/flarum-installer.log';
         $handler = new StreamHandler($logPath, Logger::DEBUG);