diff --git a/composer.lock b/composer.lock
index dd66e95..7094932 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,28 +1,31 @@
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-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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@@ -47,43 +50,180 @@
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@@ -92,28 +232,241 @@
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@@ -191,16 +544,16 @@
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+            "autoload": {
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+                    "Tuupola\\Middleware\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mika Tuupola",
+                    "email": "tuupola@appelsiini.net",
+                    "homepage": "https://appelsiini.net/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Compatibility layer for PSR-7 double pass and PSR-15 middlewares.",
+            "homepage": "https://github.com/tuupola/callable-handler",
+            "keywords": [
+                "middleware",
+                "psr-15",
+                "psr-7"
+            ],
+            "time": "2018-10-12T09:59:35+00:00"
+        },
+        {
+            "name": "tuupola/http-factory",
+            "version": "1.1.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/tuupola/http-factory.git",
+                "reference": "5fbde4c65a10d09a85652684a6e569542265a749"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/tuupola/http-factory/zipball/5fbde4c65a10d09a85652684a6e569542265a749",
+                "reference": "5fbde4c65a10d09a85652684a6e569542265a749",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1",
+                "psr/http-factory": "^1.0"
+            },
+            "conflict": {
+                "nyholm/psr7": "<1.0"
+            },
+            "provide": {
+                "psr/http-factory-implementation": "^1.0"
+            },
+            "require-dev": {
+                "http-interop/http-factory-tests": "^0.5.0",
+                "overtrue/phplint": "^1.0",
+                "phpunit/phpunit": "^6.0|^7.0",
+                "squizlabs/php_codesniffer": "^3.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Tuupola\\Http\\Factory\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mika Tuupola",
+                    "email": "tuupola@appelsiini.net",
+                    "homepage": "https://appelsiini.net/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Lightweight autodiscovering PSR-17 HTTP factories",
+            "homepage": "https://github.com/tuupola/http-factory",
+            "keywords": [
+                "http",
+                "psr-17",
+                "psr-7"
+            ],
+            "time": "2019-08-07T07:10:58+00:00"
+        },
+        {
+            "name": "tuupola/slim-jwt-auth",
+            "version": "3.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/tuupola/slim-jwt-auth.git",
+                "reference": "bdc87f7fffb04b2457910f6cf7bd83e29efb2f6b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/tuupola/slim-jwt-auth/zipball/bdc87f7fffb04b2457910f6cf7bd83e29efb2f6b",
+                "reference": "bdc87f7fffb04b2457910f6cf7bd83e29efb2f6b",
+                "shasum": ""
+            },
+            "require": {
+                "firebase/php-jwt": "^3.0|^4.0|^5.0",
+                "php": "^7.1",
+                "psr/http-message": "^1.0",
+                "psr/http-server-middleware": "^1.0",
+                "psr/log": "^1.0",
+                "tuupola/callable-handler": "^0.3.0|^0.4.0|^1.0",
+                "tuupola/http-factory": "^0.4.0|^1.0"
+            },
+            "require-dev": {
+                "codedungeon/phpunit-result-printer": "^0.23.4",
+                "equip/dispatch": "^2.0",
+                "overtrue/phplint": "^1.0",
+                "phpstan/phpstan": "^0.9.1",
+                "phpunit/phpunit": "^6.0|^7.0",
+                "squizlabs/php_codesniffer": "^3.4",
+                "zendframework/zend-diactoros": "^1.3|^2.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-3.x": "3.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Tuupola\\Middleware\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mika Tuupola",
+                    "email": "tuupola@appelsiini.net",
+                    "homepage": "https://appelsiini.net/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PSR-7 and PSR-15 JWT Authentication Middleware",
+            "homepage": "https://github.com/tuupola/slim-jwt-auth",
+            "keywords": [
+                "auth",
+                "json",
+                "jwt",
+                "middleware",
+                "psr-15",
+                "psr-7"
+            ],
+            "time": "2019-07-01T08:28:35+00:00"
         }
     ],
     "packages-dev": [
@@ -1240,22 +1961,81 @@
             ],
             "time": "2013-01-13T10:24:48+00:00"
         },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.14.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "fbdeaec0df06cf3d51c93de80c7eb76e271f5a38"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/fbdeaec0df06cf3d51c93de80c7eb76e271f5a38",
+                "reference": "fbdeaec0df06cf3d51c93de80c7eb76e271f5a38",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.14-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2020-01-13T11:15:53+00:00"
+        },
         {
             "name": "symfony/yaml",
-            "version": "v2.8.34",
+            "version": "v2.8.52",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "be720fcfae4614df204190d57795351059946a77"
+                "reference": "02c1859112aa779d9ab394ae4f3381911d84052b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/be720fcfae4614df204190d57795351059946a77",
-                "reference": "be720fcfae4614df204190d57795351059946a77",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/02c1859112aa779d9ab394ae4f3381911d84052b",
+                "reference": "02c1859112aa779d9ab394ae4f3381911d84052b",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3.9"
+                "php": ">=5.3.9",
+                "symfony/polyfill-ctype": "~1.8"
             },
             "type": "library",
             "extra": {
@@ -1287,7 +2067,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-03T07:36:31+00:00"
+            "time": "2018-11-11T11:18:13+00:00"
         }
     ],
     "aliases": [],
diff --git a/src/LoginProviders/LandlordLoginProvider.php b/src/LoginProviders/LandlordLoginProvider.php
index 723cd91..92653dd 100644
--- a/src/LoginProviders/LandlordLoginProvider.php
+++ b/src/LoginProviders/LandlordLoginProvider.php
@@ -34,7 +34,7 @@ public function __construct($identityColumnName = "Username")
         parent::__construct("User", $identityColumnName, "Password", "Enabled");
     }
 
-    protected function checkUserIsPermitted($user)
+    protected function checkUserIsPermitted($user = null)
     {
         parent::checkUserIsPermitted($user);