diff --git a/app/Exceptions/Handler.php b/app/Exceptions/Handler.php
index 70b3a61..c90eb58 100644
--- a/app/Exceptions/Handler.php
+++ b/app/Exceptions/Handler.php
@@ -2,7 +2,7 @@
 
 namespace App\Exceptions;
 
-use Exception;
+use Throwable;
 use Illuminate\Auth\Access\AuthorizationException;
 use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Validation\ValidationException;
@@ -28,10 +28,10 @@ class Handler extends ExceptionHandler
      *
      * This is a great spot to send exceptions to Sentry, Bugsnag, etc.
      *
-     * @param  \Exception  $exception
+     * @param  \Throwable  $exception
      * @return void
      */
-    public function report(Exception $exception)
+    public function report(Throwable $exception)
     {
         parent::report($exception);
     }
@@ -40,10 +40,10 @@ class Handler extends ExceptionHandler
      * Render an exception into an HTTP response.
      *
      * @param  \Illuminate\Http\Request  $request
-     * @param  \Exception  $exception
+     * @param  \Throwable  $exception
      * @return \Illuminate\Http\Response|\Illuminate\Http\JsonResponse
      */
-    public function render($request, Exception $exception)
+    public function render($request, Throwable $exception)
     {
         return parent::render($request, $exception);
     }
diff --git a/composer.json b/composer.json
index 1117fc2..4a75fe1 100644
--- a/composer.json
+++ b/composer.json
@@ -5,15 +5,15 @@
     "license": "MIT",
     "type": "project",
     "require": {
-        "php": "^7.2",
-        "easyrdf/easyrdf": "^1.0.0",
-        "laravel/lumen-framework": "^6.0",
+        "php": "^7.3|^8.0",
+        "easyrdf/easyrdf": "^1.1.0",
+        "laravel/lumen-framework": "^8.0",
         "ml/json-ld": "^1.1"
     },
     "require-dev": {
-        "fzaninotto/faker": "^1.4",
-        "phpunit/phpunit": "^8.0",
-        "mockery/mockery": "^1.0"
+        "fzaninotto/faker": "^1.9.1",
+        "phpunit/phpunit": "^9.0",
+        "mockery/mockery": "^1.2.1"
     },
     "autoload": {
         "classmap": [