diff --git a/tests/acceptance/composer.json b/tests/acceptance/composer.json
index 64808d9e28..a2ec896d94 100644
--- a/tests/acceptance/composer.json
+++ b/tests/acceptance/composer.json
@@ -1,7 +1,7 @@
 {
   "require-dev": {
     "behat/behat": "3.8.1",
-    "behat/mink": "1.7.1",
+    "behat/mink": "1.8.1",
     "behat/mink-extension": "2.3.1",
     "behat/mink-selenium2-driver": "1.4.0",
     "phpunit/phpunit": "6.5.14"
diff --git a/tests/acceptance/composer.lock b/tests/acceptance/composer.lock
index 4f18fb9c40..20d93036ba 100644
--- a/tests/acceptance/composer.lock
+++ b/tests/acceptance/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "23dccfe6d77917642d1be256dc842b55",
+    "content-hash": "d2c44a0ea2452a05e7f45d8ca6ef0387",
     "packages": [],
     "packages-dev": [
         {
@@ -148,35 +148,38 @@
         },
         {
             "name": "behat/mink",
-            "version": "v1.7.1",
+            "version": "v1.8.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/minkphp/Mink.git",
-                "reference": "e6930b9c74693dff7f4e58577e1b1743399f3ff9"
+                "reference": "07c6a9fe3fa98c2de074b25d9ed26c22904e3887"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/minkphp/Mink/zipball/e6930b9c74693dff7f4e58577e1b1743399f3ff9",
-                "reference": "e6930b9c74693dff7f4e58577e1b1743399f3ff9",
+                "url": "https://api.github.com/repos/minkphp/Mink/zipball/07c6a9fe3fa98c2de074b25d9ed26c22904e3887",
+                "reference": "07c6a9fe3fa98c2de074b25d9ed26c22904e3887",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.1",
-                "symfony/css-selector": "~2.1|~3.0"
+                "symfony/css-selector": "^2.7|^3.0|^4.0|^5.0"
             },
             "require-dev": {
-                "symfony/phpunit-bridge": "~2.7|~3.0"
+                "phpunit/phpunit": "^4.8.36 || ^5.7.27 || ^6.5.14 || ^7.5.20",
+                "symfony/debug": "^2.7|^3.0|^4.0",
+                "symfony/phpunit-bridge": "^3.4.38 || ^5.0.5"
             },
             "suggest": {
                 "behat/mink-browserkit-driver": "extremely fast headless driver for Symfony\\Kernel-based apps (Sf2, Silex)",
                 "behat/mink-goutte-driver": "fast headless driver for any app without JS emulation",
                 "behat/mink-selenium2-driver": "slow, but JS-enabled driver for any app (requires Selenium2)",
-                "behat/mink-zombie-driver": "fast and JS-enabled headless driver for any app (requires node.js)"
+                "behat/mink-zombie-driver": "fast and JS-enabled headless driver for any app (requires node.js)",
+                "dmore/chrome-mink-driver": "fast and JS-enabled driver for any app (requires chromium or google chrome)"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.7.x-dev"
+                    "dev-master": "1.8.x-dev"
                 }
             },
             "autoload": {
@@ -202,7 +205,7 @@
                 "testing",
                 "web"
             ],
-            "time": "2016-03-05T08:26:18+00:00"
+            "time": "2020-03-11T15:45:53+00:00"
         },
         {
             "name": "behat/mink-extension",
@@ -2027,20 +2030,20 @@
         },
         {
             "name": "symfony/css-selector",
-            "version": "v3.4.47",
+            "version": "v5.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/css-selector.git",
-                "reference": "da3d9da2ce0026771f5fe64cb332158f1bd2bc33"
+                "reference": "f789e7ead4c79e04ca9a6d6162fc629c89bd8054"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/css-selector/zipball/da3d9da2ce0026771f5fe64cb332158f1bd2bc33",
-                "reference": "da3d9da2ce0026771f5fe64cb332158f1bd2bc33",
+                "url": "https://api.github.com/repos/symfony/css-selector/zipball/f789e7ead4c79e04ca9a6d6162fc629c89bd8054",
+                "reference": "f789e7ead4c79e04ca9a6d6162fc629c89bd8054",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": ">=7.2.5"
             },
             "type": "library",
             "autoload": {
@@ -2071,7 +2074,7 @@
             ],
             "description": "Symfony CssSelector Component",
             "homepage": "https://symfony.com",
-            "time": "2020-10-24T10:57:07+00:00"
+            "time": "2020-12-08T17:02:38+00:00"
         },
         {
             "name": "symfony/dependency-injection",
diff --git a/tests/acceptance/features/core/ActorContext.php b/tests/acceptance/features/core/ActorContext.php
index 932af5ff27..b3c8b6f045 100644
--- a/tests/acceptance/features/core/ActorContext.php
+++ b/tests/acceptance/features/core/ActorContext.php
@@ -135,6 +135,8 @@ class ActorContext extends RawMinkContext {
 		$this->actors = [];
 		$this->sharedNotebook = [];
 
+		$this->getSession()->start();
+
 		$this->actors["default"] = new Actor("default", $this->getSession(), $this->getMinkParameter("base_url"), $this->sharedNotebook);
 		$this->actors["default"]->setFindTimeoutMultiplier($this->actorTimeoutMultiplier);
 
@@ -159,6 +161,8 @@ class ActorContext extends RawMinkContext {
 	 */
 	public function iActAs($actorName) {
 		if (!array_key_exists($actorName, $this->actors)) {
+			$this->getSession($actorName)->start();
+
 			$this->actors[$actorName] = new Actor($actorName, $this->getSession($actorName), $this->getMinkParameter("base_url"), $this->sharedNotebook);
 			$this->actors[$actorName]->setFindTimeoutMultiplier($this->actorTimeoutMultiplier);
 		}