diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 50e171f..c3ec0e0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,15 +1,18 @@
 name: CI
 
-on: [push]
+on: [push, pull_request_target]
 
 jobs:
   build-test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        PHP_VERSION: [ "8.0", "8.1" ]
 
     steps:
       - uses: actions/checkout@v2
       - uses: php-actions/composer@v6
         with:
-          php_version: 7.4
-          version: 1
+          php_version: ${{ matrix.php_version }}
+          version: 2
       - uses: php-actions/phpunit@v3
diff --git a/composer.json b/composer.json
index 6c8d693..6467db6 100644
--- a/composer.json
+++ b/composer.json
@@ -10,17 +10,23 @@
     }
   ],
   "require": {
-    "consolidation/robo": "^3.0"
+    "consolidation/robo": "^4.0"
   },
   "require-dev": {
-    "drupal/coder": "^8",
-    "phpunit/phpunit": "^9.4",
-    "phpro/grumphp": "^1.2"
+    "drupal/coder": "^8.3.16",
+    "phpunit/phpunit": "^9.5.5",
+    "phpro/grumphp": "^1.14"
   },
   "autoload": {
     "psr-4": {
       "NuvoleWeb\\Robo\\Task\\Config\\": "./src/",
       "NuvoleWeb\\Robo\\Tests\\": "./tests/"
     }
+  },
+  "config": {
+    "allow-plugins": {
+      "dealerdirect/phpcodesniffer-composer-installer": true,
+      "phpro/grumphp": true
+    }
   }
 }
diff --git a/src/Php/AppendConfiguration.php b/src/Php/AppendConfiguration.php
index dd292d8..85f66bd 100644
--- a/src/Php/AppendConfiguration.php
+++ b/src/Php/AppendConfiguration.php
@@ -3,7 +3,7 @@
 namespace NuvoleWeb\Robo\Task\Config\Php;
 
 /**
- * Class AppendConfiguration.
+ * Class to append configuration.
  *
  * @package NuvoleWeb\Robo\Task\Config
  */
diff --git a/src/Php/BaseConfiguration.php b/src/Php/BaseConfiguration.php
index 6507e09..79c28ad 100644
--- a/src/Php/BaseConfiguration.php
+++ b/src/Php/BaseConfiguration.php
@@ -7,7 +7,7 @@
 use Robo\Task\File\Write;
 
 /**
- * Class BaseConfiguration.
+ * Class providing base configuration.
  *
  * @package NuvoleWeb\Robo\Task\Config
  */
diff --git a/src/Php/BaseConfigurationInterface.php b/src/Php/BaseConfigurationInterface.php
index 8dc8ced..f717d62 100644
--- a/src/Php/BaseConfigurationInterface.php
+++ b/src/Php/BaseConfigurationInterface.php
@@ -3,7 +3,7 @@
 namespace NuvoleWeb\Robo\Task\Config\Php;
 
 /**
- * Interface BaseConfigurationInterface.
+ * Interface of the BaseConfigurationInterface class.
  *
  * @package NuvoleWeb\Robo\Task\Config
  */
diff --git a/src/Php/PrependConfiguration.php b/src/Php/PrependConfiguration.php
index 77ac117..0a0ee83 100644
--- a/src/Php/PrependConfiguration.php
+++ b/src/Php/PrependConfiguration.php
@@ -3,7 +3,7 @@
 namespace NuvoleWeb\Robo\Task\Config\Php;
 
 /**
- * Class PrependConfiguration.
+ * Class to prepend configuration.
  *
  * @package NuvoleWeb\Robo\Task\Config
  */
diff --git a/src/Php/WriteConfiguration.php b/src/Php/WriteConfiguration.php
index 65a08ef..8af6709 100644
--- a/src/Php/WriteConfiguration.php
+++ b/src/Php/WriteConfiguration.php
@@ -3,7 +3,7 @@
 namespace NuvoleWeb\Robo\Task\Config\Php;
 
 /**
- * Class WriteConfiguration.
+ * Class to write configuration.
  *
  * @package NuvoleWeb\Robo\Task\Config
  */
diff --git a/src/Php/loadTasks.php b/src/Php/loadTasks.php
index c948145..fd5b2e8 100644
--- a/src/Php/loadTasks.php
+++ b/src/Php/loadTasks.php
@@ -6,7 +6,7 @@
 use Robo\Robo;
 
 /**
- * Class loadTasks.
+ * Class to load PHP tasks.
  *
  * @package NuvoleWeb\Robo\Task\Config\Php
  */
diff --git a/src/Robo/loadTasks.php b/src/Robo/loadTasks.php
index 8609c44..c587178 100644
--- a/src/Robo/loadTasks.php
+++ b/src/Robo/loadTasks.php
@@ -11,7 +11,7 @@
 use Symfony\Component\Yaml\Yaml;
 
 /**
- * Class loadTasks.
+ * Class to load Robo tasks.
  *
  * @package NuvoleWeb\Robo\Task\Config\Robo
  */
diff --git a/src/loadTasks.php b/src/loadTasks.php
index fa81cb2..cad0bba 100644
--- a/src/loadTasks.php
+++ b/src/loadTasks.php
@@ -3,7 +3,7 @@
 namespace NuvoleWeb\Robo\Task\Config;
 
 /**
- * Class loadTasks.
+ * Includes provided loadTasks classes.
  *
  * @package NuvoleWeb\Robo\Task\Config
  */