diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 14306a2a..3aca150f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: ['12.x', '14.x']
 
     name: Test asset generation process on Node ${{ matrix.node-version }}
 
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         operating-system: [ubuntu-latest]
-        php-versions: ['7.3', '7.4']
+        php-versions: ['7.3', '7.4', '8.0']
 
     name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
 
diff --git a/composer.json b/composer.json
index 1c866210..ee0c2049 100644
--- a/composer.json
+++ b/composer.json
@@ -62,7 +62,7 @@
       "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
       "@php artisan package:discover --ansi"
     ],
-    "lint": "./vendor/bin/phpcs",
+    "lint": "./vendor/bin/phpcs --runtime-set ignore_warnings_on_exit 1",
     "test": "./vendor/bin/phpunit",
     "code-coverage": "./vendor/bin/phpunit --coverage-clover test-coverage.xml"
   },
diff --git a/database/seeders/ExampleSeeder.php b/database/seeders/ExampleSeeder.php
index f1bd8720..93149b81 100644
--- a/database/seeders/ExampleSeeder.php
+++ b/database/seeders/ExampleSeeder.php
@@ -6,6 +6,7 @@ use App\Models\Link;
 use App\Models\LinkList;
 use App\Models\Tag;
 use App\Models\User;
+use Exception;
 use Illuminate\Database\Seeder;
 
 class ExampleSeeder extends Seeder
@@ -14,8 +15,9 @@ class ExampleSeeder extends Seeder
      * Run the database seeds.
      *
      * @return void
+     * @throws Exception
      */
-    public function run()
+    public function run(): void
     {
         // Generate users, categories and tags
         User::factory()->create();
diff --git a/phpcs.xml b/phpcs.xml
index 780038fd..774c11e9 100644
--- a/phpcs.xml
+++ b/phpcs.xml
@@ -4,16 +4,18 @@
 
   <!-- Check the theme folder -->
   <file>./app</file>
+  <file>./database/factories</file>
+  <file>./database/seeders</file>
   <file>./tests</file>
 
   <!-- Enable the PSR-2 Code Standard rules -->
   <rule ref="PSR2"/>
 
-  <!-- Prevent warnings for lines that contain more than 80 characters, only enforce the hard cap -->
+  <!-- Prevent warnings for lines that contain more than 80 characters -->
   <rule ref="Generic.Files.LineLength">
     <properties>
       <property name="lineLimit" value="120"/>
-      <property name="absoluteLineLimit" value="120"/>
+      <property name="absoluteLineLimit" value="0"/>
     </properties>
   </rule>
 </ruleset>