diff --git a/src/PermissionRegistrar.php b/src/PermissionRegistrar.php
index c82309f8c..c3308b201 100644
--- a/src/PermissionRegistrar.php
+++ b/src/PermissionRegistrar.php
@@ -266,7 +266,7 @@ private function getHydratedRole(array $item)
         }
 
         $roleClass = $this->getRoleClass();
-        $roleInstance = new $roleClass;
+        $roleInstance = new $roleClass();
 
         return $this->cachedRoles[$roleId] = $roleInstance->newFromBuilder([
             'id' => $roleId,
diff --git a/src/Traits/HasPermissions.php b/src/Traits/HasPermissions.php
index 5ac94cbda..00b7a82ae 100644
--- a/src/Traits/HasPermissions.php
+++ b/src/Traits/HasPermissions.php
@@ -139,7 +139,7 @@ public function hasPermissionTo($permission, $guardName = null): bool
         }
 
         if (! $permission instanceof Permission) {
-            throw new PermissionDoesNotExist;
+            throw new PermissionDoesNotExist();
         }
 
         return $this->hasDirectPermission($permission) || $this->hasPermissionViaRole($permission);
@@ -285,7 +285,7 @@ public function hasDirectPermission($permission): bool
         }
 
         if (! $permission instanceof Permission) {
-            throw new PermissionDoesNotExist;
+            throw new PermissionDoesNotExist();
         }
 
         return $this->permissions->contains('id', $permission->id);
diff --git a/src/WildcardPermission.php b/src/WildcardPermission.php
index 22d142ba0..a1b20a707 100644
--- a/src/WildcardPermission.php
+++ b/src/WildcardPermission.php
@@ -8,13 +8,13 @@
 class WildcardPermission
 {
     /** @var string */
-    const WILDCARD_TOKEN = '*';
+    public const WILDCARD_TOKEN = '*';
 
     /** @var string */
-    const PART_DELIMITER = '.';
+    public const PART_DELIMITER = '.';
 
     /** @var string */
-    const SUBPART_DELIMITER = ',';
+    public const SUBPART_DELIMITER = ',';
 
     /** @var string */
     protected $permission;
diff --git a/tests/HasPermissionsWithCustomModelsTest.php b/tests/HasPermissionsWithCustomModelsTest.php
index 8d0ab6442..92970121a 100644
--- a/tests/HasPermissionsWithCustomModelsTest.php
+++ b/tests/HasPermissionsWithCustomModelsTest.php
@@ -6,7 +6,7 @@ class HasPermissionsWithCustomModelsTest extends HasPermissionsTest
 {
     /** @var bool */
     protected $useCustomModels = true;
-    
+
     /** @test */
     public function it_can_use_custom_models()
     {
diff --git a/tests/TestCase.php b/tests/TestCase.php
index f282b915d..350d90188 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -32,7 +32,7 @@ abstract class TestCase extends Orchestra
 
     /** @var \Spatie\Permission\Models\Permission */
     protected $testAdminPermission;
-    
+
     /** @var bool */
     protected $useCustomModels = false;