diff --git a/.github/workflows/php.yml b/.github/workflows/php.yml
index 4911c85..7f51d6c 100644
--- a/.github/workflows/php.yml
+++ b/.github/workflows/php.yml
@@ -3,27 +3,19 @@ on: [push, pull_request]
 jobs:
   # Check there is no syntax errors in the project
   php-linter:
-    name: PHP Syntax check 5.6 => 8.1
+    name: PHP Syntax check 8.1
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v2.0.0
-
-      - name: PHP syntax checker 5.6
-        uses: prestashop/github-action-php-lint/5.6@master
-
       - name: PHP syntax checker 7.2
         uses: prestashop/github-action-php-lint/7.2@master
-
       - name: PHP syntax checker 7.3
         uses: prestashop/github-action-php-lint/7.3@master
-
       - name: PHP syntax checker 7.4
         uses: prestashop/github-action-php-lint/7.4@master
-
       - name: PHP syntax checker 8.0
         uses: prestashop/github-action-php-lint/8.0@master
-
       - name: PHP syntax checker 8.1
         uses: prestashop/github-action-php-lint/8.1@master
 
@@ -35,7 +27,7 @@ jobs:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '7.4'
+          php-version: '8.1'
 
       - name: Checkout
         uses: actions/checkout@v2.0.0
@@ -58,12 +50,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        presta-versions: ['1.7.4.4', '1.7.5.1', '1.7.6', '1.7.7', '1.7.8', 'latest']
+        presta-versions: ['8.0.0', '8.1.0', 'latest']
     steps:
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
         with:
-          php-version: '7.4'
+          php-version: '8.1'
 
       - name: Checkout
         uses: actions/checkout@v2.0.0
diff --git a/ps_imageslider.php b/ps_imageslider.php
index ce42ddb..0fb9ef4 100644
--- a/ps_imageslider.php
+++ b/ps_imageslider.php
@@ -62,7 +62,7 @@ public function __construct()
 
         $this->displayName = $this->trans('Image slider', [], 'Modules.Imageslider.Admin');
         $this->description = $this->trans('Add sliding images to your homepage to welcome your visitors in a visual and friendly way.', [], 'Modules.Imageslider.Admin');
-        $this->ps_versions_compliancy = ['min' => '1.7.4.0', 'max' => _PS_VERSION_];
+        $this->ps_versions_compliancy = ['min' => '8.0.0', 'max' => _PS_VERSION_];
 
         $this->templateFile = 'module:ps_imageslider/views/templates/hook/slider.tpl';
     }
@@ -480,9 +480,10 @@ protected function _postProcess()
                             'gif',
                             'jpeg',
                             'png',
+                            'webp',
                         ]
                     ) &&
-                    in_array($type, ['jpg', 'gif', 'jpeg', 'png'])
+                    in_array($type, ['jpg', 'gif', 'jpeg', 'png', 'webp'])
                 ) {
                     $temp_name = tempnam(_PS_TMP_IMG_DIR_, 'PS');
                     $salt = sha1(microtime());
diff --git a/tests/phpstan/phpstan-1.7.6.neon b/tests/phpstan/phpstan-1.7.6.neon
deleted file mode 100644
index 3e0e93c..0000000
--- a/tests/phpstan/phpstan-1.7.6.neon
+++ /dev/null
@@ -1,2 +0,0 @@
-includes:
-    - %currentWorkingDirectory%/tests/phpstan/phpstan.neon
diff --git a/tests/phpstan/phpstan-1.7.7.neon b/tests/phpstan/phpstan-1.7.7.neon
deleted file mode 100644
index 3e0e93c..0000000
--- a/tests/phpstan/phpstan-1.7.7.neon
+++ /dev/null
@@ -1,2 +0,0 @@
-includes:
-    - %currentWorkingDirectory%/tests/phpstan/phpstan.neon
diff --git a/tests/phpstan/phpstan-1.7.8.neon b/tests/phpstan/phpstan-1.7.8.neon
deleted file mode 100644
index 3e0e93c..0000000
--- a/tests/phpstan/phpstan-1.7.8.neon
+++ /dev/null
@@ -1,2 +0,0 @@
-includes:
-    - %currentWorkingDirectory%/tests/phpstan/phpstan.neon
diff --git a/tests/phpstan/phpstan-1.7.4.4.neon b/tests/phpstan/phpstan-8.0.0.neon
similarity index 100%
rename from tests/phpstan/phpstan-1.7.4.4.neon
rename to tests/phpstan/phpstan-8.0.0.neon
diff --git a/tests/phpstan/phpstan-1.7.5.1.neon b/tests/phpstan/phpstan-8.1.0.neon
similarity index 100%
rename from tests/phpstan/phpstan-1.7.5.1.neon
rename to tests/phpstan/phpstan-8.1.0.neon