diff --git a/README.md b/README.md
index e3a70cf..e611463 100644
--- a/README.md
+++ b/README.md
@@ -26,8 +26,8 @@ Integration of Nette Framework to Codeception.
 
 | State       | Version  | Branch   | PHP     |                 |
 |-------------|----------|----------|---------|-----------------|
-| dev         | `^1.3.0` | `master` | `^7.2`  |                 |
-| stable      | `^1.2.0` | `master` | `^7.2`  |                 |
+| dev         | `^1.4.0` | `master` | `^7.2`  |                 |
+| stable      | `^1.3.0` | `master` | `^7.2`  |                 |
 | stable      | `^0.8.1` | `master` | `>=7.1` | (old namespace) |
 
 ## Maintainers
diff --git a/codeception.yml b/codeception.yml
index e7ee0f7..c570c2a 100644
--- a/codeception.yml
+++ b/codeception.yml
@@ -6,8 +6,9 @@ paths:
     data: tests/_data
     support: tests/_helpers
 
+bootstrap: _bootstrap.php
+
 settings:
-    bootstrap: _bootstrap.php
     log: true
 
 coverage:
diff --git a/composer.json b/composer.json
index 5c5b378..4e24114 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,8 @@
   ],
   "require": {
     "php": "^7.2",
-    "codeception/codeception": "^2.5.1 || ^3.0.2",
+    "codeception/codeception": "^4.0.2",
+    "codeception/lib-innerbrowser": "^1.3",
     "nette/di": "^3.0",
     "nette/bootstrap": "^3.0",
     "nette/http": "^3.0.3",
@@ -32,10 +33,10 @@
     "nette/caching": "~2.5.8 || ^3.0",
     "ninjify/qa": "^0.10.0",
     "phpstan/extension-installer": "^1.0",
-    "phpstan/phpstan-deprecation-rules": "^0.11",
-    "phpstan/phpstan-nette": "^0.11",
-    "phpstan/phpstan-shim": "^0.11",
-    "phpstan/phpstan-strict-rules": "^0.11",
+    "phpstan/phpstan-deprecation-rules": "^0.12",
+    "phpstan/phpstan-nette": "^0.12",
+    "phpstan/phpstan": "^0.12",
+    "phpstan/phpstan-strict-rules": "^0.12",
     "tracy/tracy": "~2.6.1 || ~2.7.0"
   },
   "conflict": {
@@ -61,7 +62,7 @@
   },
   "extra": {
     "branch-alias": {
-      "dev-master": "1.3.x-dev"
+      "dev-master": "1.4.x-dev"
     }
   }
 }
diff --git a/phpstan.neon b/phpstan.neon
index cba2b27..421076b 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -20,5 +20,7 @@ parameters:
 		# Complicated to test dev-required phpstan with separatly installed version
 		- '#^Call to an undefined method PHPStan\\#'
 
-		# Symfony 4.3 deprecation message
-		- '#^Class Contributte\\Codeception\\Connector\\NetteConnector extends deprecated class Symfony\\Component\\BrowserKit\\Client(.+)#'
+	earlyTerminatingMethodCalls:
+		Codeception\Module:
+			- fail
+
diff --git a/src/Connector/NetteConnector.php b/src/Connector/NetteConnector.php
index 0a77ba8..a4af8a1 100644
--- a/src/Connector/NetteConnector.php
+++ b/src/Connector/NetteConnector.php
@@ -9,12 +9,12 @@
 use Nette\DI\Container;
 use Nette\Http\IRequest;
 use Nette\Http\IResponse;
-use Symfony\Component\BrowserKit\Client;
+use Symfony\Component\BrowserKit\AbstractBrowser;
 use Symfony\Component\BrowserKit\Request;
 use Symfony\Component\BrowserKit\Response;
 use Throwable;
 
-class NetteConnector extends Client
+class NetteConnector extends AbstractBrowser
 {
 
 	/** @var callable */
diff --git a/src/DI/HttpExtension.php b/src/DI/HttpExtension.php
index cf19e9d..8bf7a50 100644
--- a/src/DI/HttpExtension.php
+++ b/src/DI/HttpExtension.php
@@ -15,14 +15,14 @@ public function beforeCompile(): void
 	{
 		$builder = $this->getContainerBuilder();
 
-		$request = $builder->getByType(IRequest::class) ?: 'httpRequest';
+		$request = $builder->getByType(IRequest::class) ?? 'httpRequest';
 		if ($builder->hasDefinition($request)) {
 			$builder->getDefinition($request)
 				->setType(IRequest::class)
 				->setFactory(Request::class);
 		}
 
-		$response = $builder->getByType(IResponse::class) ?: 'httpResponse';
+		$response = $builder->getByType(IResponse::class) ?? 'httpResponse';
 		if ($builder->hasDefinition($response)) {
 			$builder->getDefinition($response)
 				->setType(IResponse::class)
diff --git a/src/Module/NetteApplicationModule.php b/src/Module/NetteApplicationModule.php
index d25184e..c950945 100644
--- a/src/Module/NetteApplicationModule.php
+++ b/src/Module/NetteApplicationModule.php
@@ -5,6 +5,7 @@
 use Codeception\Lib\Framework;
 use Codeception\TestInterface;
 use Contributte\Codeception\Connector\NetteConnector;
+use Nette\DI\Container;
 use Nette\Http\IRequest;
 use Nette\Http\IResponse;
 
@@ -35,7 +36,7 @@ public function _before(TestInterface $test): void
 	{
 		$this->client = new NetteConnector();
 		$this->client->setContainerAccessor(
-			function () {
+			function (): Container {
 				/** @var NetteDIModule $diModule */
 				$diModule = $this->getModule(NetteDIModule::class);