diff --git a/README.md b/README.md
index 875a1ae..da85b4c 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Supports all versions of Dusk.
 
 ## Installation
 
-    composer require --dev staudenmeir/dusk-updater
+    composer require --dev staudenmeir/dusk-updater:"^1.1"
 
 Users of Laravel 5.4 have to register the new provider in `AppServiceProvider::register()`:
 
diff --git a/composer.json b/composer.json
index f3d8d26..1e2a0b6 100644
--- a/composer.json
+++ b/composer.json
@@ -9,12 +9,11 @@
         }
     ],
     "require": {
-        "php": ">=5.6.4",
-        "ext-openssl": "*",
-        "ext-zip": "*"
+        "php": "^7.1.3",
+        "symfony/process": "^4.2 || ^5.0"
     },
     "require-dev": {
-        "orchestra/testbench": "^4.0"
+        "orchestra/testbench": "^5.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/src/DetectsChromeVersion.php b/src/DetectsChromeVersion.php
index 2fd09be..052d845 100644
--- a/src/DetectsChromeVersion.php
+++ b/src/DetectsChromeVersion.php
@@ -47,7 +47,7 @@ protected function chromeVersion($os)
         }
 
         foreach ($commands as $command) {
-            $process = new Process($command);
+            $process = Process::fromShellCommandline($command);
 
             $process->run();