diff --git a/composer.json b/composer.json
index edb07f3..ce28242 100644
--- a/composer.json
+++ b/composer.json
@@ -19,6 +19,7 @@
         "symfony/framework-bundle": "^4.4",
         "symfony/monolog-bundle": "^3.3",
         "symfony/orm-pack": "^1.0",
+        "symfony/profiler-pack": "^1.0",
         "symfony/twig-bundle": "^4.4",
         "symfony/yaml": "^4.4",
         "tightenco/collect": "^5.6"
diff --git a/composer.lock b/composer.lock
index 839b1a2..d389ed5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "d3da598f9488af7dcf4bbf3e7945f187",
+    "content-hash": "ea09297f32ae7bb1a4392cb514b0d0b2",
     "packages": [
         {
             "name": "doctrine/annotations",
@@ -4819,6 +4819,34 @@
             ],
             "time": "2019-11-27T16:25:15+00:00"
         },
+        {
+            "name": "symfony/profiler-pack",
+            "version": "v1.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/profiler-pack.git",
+                "reference": "99c4370632c2a59bb0444852f92140074ef02209"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/profiler-pack/zipball/99c4370632c2a59bb0444852f92140074ef02209",
+                "reference": "99c4370632c2a59bb0444852f92140074ef02209",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.0",
+                "symfony/stopwatch": "*",
+                "symfony/twig-bundle": "*",
+                "symfony/web-profiler-bundle": "*"
+            },
+            "type": "symfony-pack",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "A pack for the Symfony web profiler",
+            "time": "2018-12-10T12:11:44+00:00"
+        },
         {
             "name": "symfony/property-info",
             "version": "v4.4.2",
@@ -5526,6 +5554,70 @@
             ],
             "time": "2019-12-01T08:48:26+00:00"
         },
+        {
+            "name": "symfony/web-profiler-bundle",
+            "version": "v5.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/web-profiler-bundle.git",
+                "reference": "6cc40446060e174a690e0f6da90731133b29b664"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/web-profiler-bundle/zipball/6cc40446060e174a690e0f6da90731133b29b664",
+                "reference": "6cc40446060e174a690e0f6da90731133b29b664",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2.5",
+                "symfony/config": "^4.4|^5.0",
+                "symfony/framework-bundle": "^4.4|^5.0",
+                "symfony/http-kernel": "^4.4|^5.0",
+                "symfony/routing": "^4.4|^5.0",
+                "symfony/twig-bundle": "^4.4|^5.0",
+                "twig/twig": "^2.10|^3.0"
+            },
+            "conflict": {
+                "symfony/form": "<4.4",
+                "symfony/messenger": "<4.4"
+            },
+            "require-dev": {
+                "symfony/console": "^4.4|^5.0",
+                "symfony/dependency-injection": "^4.4|^5.0",
+                "symfony/stopwatch": "^4.4|^5.0"
+            },
+            "type": "symfony-bundle",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "5.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Bundle\\WebProfilerBundle\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony WebProfilerBundle",
+            "homepage": "https://symfony.com",
+            "time": "2019-11-21T07:02:40+00:00"
+        },
         {
             "name": "symfony/yaml",
             "version": "v4.4.2",
diff --git a/config/bundles.php b/config/bundles.php
index 1afd455..47980cd 100644
--- a/config/bundles.php
+++ b/config/bundles.php
@@ -11,4 +11,5 @@ return [
     Symfony\Bundle\MonologBundle\MonologBundle::class => ['all' => true],
     Nelmio\ApiDocBundle\NelmioApiDocBundle::class => ['all' => true],
     JMS\SerializerBundle\JMSSerializerBundle::class => ['all' => true],
+    Symfony\Bundle\WebProfilerBundle\WebProfilerBundle::class => ['dev' => true, 'test' => true],
 ];
diff --git a/config/packages/dev/web_profiler.yaml b/config/packages/dev/web_profiler.yaml
new file mode 100644
index 0000000..e92166a
--- /dev/null
+++ b/config/packages/dev/web_profiler.yaml
@@ -0,0 +1,6 @@
+web_profiler:
+    toolbar: true
+    intercept_redirects: false
+
+framework:
+    profiler: { only_exceptions: false }
diff --git a/config/packages/test/web_profiler.yaml b/config/packages/test/web_profiler.yaml
new file mode 100644
index 0000000..03752de
--- /dev/null
+++ b/config/packages/test/web_profiler.yaml
@@ -0,0 +1,6 @@
+web_profiler:
+    toolbar: false
+    intercept_redirects: false
+
+framework:
+    profiler: { collect: false }
diff --git a/config/routes/dev/web_profiler.yaml b/config/routes/dev/web_profiler.yaml
new file mode 100644
index 0000000..c82beff
--- /dev/null
+++ b/config/routes/dev/web_profiler.yaml
@@ -0,0 +1,7 @@
+web_profiler_wdt:
+    resource: '@WebProfilerBundle/Resources/config/routing/wdt.xml'
+    prefix: /_wdt
+
+web_profiler_profiler:
+    resource: '@WebProfilerBundle/Resources/config/routing/profiler.xml'
+    prefix: /_profiler
diff --git a/package.json b/package.json
index 871b219..cfba593 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "sass-loader": "^7.1.0",
     "style-loader": "^0.22.1",
     "ts-loader": "^4.5.0",
-    "typescript": "^3.0.1",
+    "typescript": "^3.6",
     "vue": "^2.5.17",
     "vue-class-component": "^6.2.0",
     "vue-property-decorator": "^7.0.0",
diff --git a/resources/ts/app.ts b/resources/ts/app.ts
index 26ec082..399db4c 100644
--- a/resources/ts/app.ts
+++ b/resources/ts/app.ts
@@ -23,7 +23,7 @@ Vue.use(Vuex);
         import('./font-awesome'),
         import('./filters'),
         import('bootstrap'),
-    ]);
+    ] as const);
 
     // here goes "public" API
     window['czydojade'] = Object.assign({
diff --git a/resources/ts/components/map.ts b/resources/ts/components/map.ts
index b971c0d..7a8635b 100644
--- a/resources/ts/components/map.ts
+++ b/resources/ts/components/map.ts
@@ -8,7 +8,7 @@ import * as iconRetinaUrl from 'leaflet/dist/images/marker-icon-2x.png';
 import * as iconUrl from 'leaflet/dist/images/marker-icon.png';
 import * as shadowUrl from 'leaflet/dist/images/marker-shadow.png';
 
-delete L.Icon.Default.prototype._getIconUrl;
+delete L.Icon.Default.prototype['_getIconUrl'];
 
 L.Icon.Default.mergeOptions({ iconRetinaUrl, iconUrl, shadowUrl });
 
diff --git a/resources/ts/components/utils.ts b/resources/ts/components/utils.ts
index a074847..a3f216e 100644
--- a/resources/ts/components/utils.ts
+++ b/resources/ts/components/utils.ts
@@ -102,7 +102,7 @@ export class FoldComponent extends Vue {
     @Watch('visible')
     private resize() {
         const inner = this.$refs['inner'] as HTMLDivElement;
-        this.$el.style.height = `${(this.visible && inner) ? inner.clientHeight : 0}px`;
+        (this.$el as HTMLElement).style.height = `${(this.visible && inner) ? inner.clientHeight : 0}px`;
     }
 }
 
diff --git a/src/Model/Stop.php b/src/Model/Stop.php
index 8db4eed..6deb0f1 100644
--- a/src/Model/Stop.php
+++ b/src/Model/Stop.php
@@ -4,17 +4,13 @@ namespace App\Model;
 
 use JMS\Serializer\Annotation as Serializer;
 use Swagger\Annotations as SWG;
-use Symfony\Component\Serializer\Annotation\Groups;
-use Symfony\Component\Serializer\Normalizer\NormalizableInterface;
-use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
-use Tightenco\Collect\Support\Arr;
 
 /**
  * Class Stop
  *
  * @package App\Model
  */
-class Stop implements Referable, Fillable, NormalizableInterface
+class Stop implements Referable, Fillable
 {
     use FillTrait, ReferableTrait;
 
@@ -138,9 +134,4 @@ class Stop implements Referable, Fillable, NormalizableInterface
     {
         $this->onDemand = $onDemand;
     }
-
-    public function normalize(NormalizerInterface $normalizer, $format = null, array $context = [])
-    {
-        return Arr::except($normalizer->normalize($this), ['latitude', 'longitude']);
-    }
 }
\ No newline at end of file
diff --git a/symfony.lock b/symfony.lock
index 84a5881..7dae263 100644
--- a/symfony.lock
+++ b/symfony.lock
@@ -301,6 +301,9 @@
     "symfony/process": {
         "version": "v4.1.3"
     },
+    "symfony/profiler-pack": {
+        "version": "v1.0.4"
+    },
     "symfony/property-access": {
         "version": "v4.1.3"
     },
@@ -358,6 +361,20 @@
     "symfony/var-exporter": {
         "version": "v5.0.2"
     },
+    "symfony/web-profiler-bundle": {
+        "version": "3.3",
+        "recipe": {
+            "repo": "github.com/symfony/recipes",
+            "branch": "master",
+            "version": "3.3",
+            "ref": "6bdfa1a95f6b2e677ab985cd1af2eae35d62e0f6"
+        },
+        "files": [
+            "config/packages/dev/web_profiler.yaml",
+            "config/packages/test/web_profiler.yaml",
+            "config/routes/dev/web_profiler.yaml"
+        ]
+    },
     "symfony/web-server-bundle": {
         "version": "3.3",
         "recipe": {
diff --git a/yarn.lock b/yarn.lock
index 73ca74d..08e47bf 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5917,10 +5917,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.0.1:
-  version "3.7.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.3.tgz#b36840668a16458a7025b9eabfad11b66ab85c69"
-  integrity sha512-Mcr/Qk7hXqFBXMN7p7Lusj1ktCBydylfQM/FZCk5glCNQJrCUKPkMHdo9R0MTFWsC/4kPFvDS0fDPvukfCkFsw==
+typescript@^3.6:
+  version "3.7.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.4.tgz#1743a5ec5fef6a1fa9f3e4708e33c81c73876c19"
+  integrity sha512-A25xv5XCtarLwXpcDNZzCGvW2D1S3/bACratYBx2sax8PefsFhlYmkQicKHvpYflFS8if4zne5zT5kpJ7pzuvw==
 
 unbzip2-stream@^1.0.9:
   version "1.3.3"