diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 80098e9..05f5df8 100755
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -73,7 +73,7 @@ jobs:
       fail-fast: false
       max-parallel: 3
       matrix:
-        php-versions: ['8.0']
+        php-versions: ['8.1']
     steps:
     - name: Checkout Repository
       uses: actions/checkout@main
@@ -135,7 +135,7 @@ jobs:
       fail-fast: false
       max-parallel: 3
       matrix:
-        php-versions: ['8.0']
+        php-versions: ['8.1']
     steps:
     - name: Checkout Repository
       uses: actions/checkout@main
@@ -184,7 +184,7 @@ jobs:
       fail-fast: false
       max-parallel: 3
       matrix:
-        php-versions: ['8.0']
+        php-versions: ['8.1']
     steps:
     - name: Checkout Repository
       uses: actions/checkout@main
@@ -240,7 +240,7 @@ jobs:
         submodules: recursive
         token: ${{ secrets.GH_PAT }}
     - name: Lint Code Base
-      uses: github/super-linter@v4
+      uses: github/super-linter/slim@v4
       env:
         VALIDATE_ALL_CODEBASE: false
         DEFAULT_BRANCH: develop
diff --git a/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorPopupView.php b/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorPopupView.php
index 019371b..009fdd1 100755
--- a/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorPopupView.php
+++ b/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorPopupView.php
@@ -76,7 +76,7 @@ class DepartmentTagSelectorPopupView extends View
     /**
      * {@inheritdoc}
      */
-    public function render(...$data) : string
+    public function render(mixed ...$data) : string
     {
         $this->id = $data[0] ?? $this->id;
         return parent::render();
diff --git a/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorView.php b/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorView.php
index 0cdf4b4..772d21a 100755
--- a/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorView.php
+++ b/Theme/Backend/Components/DepartmentTagSelector/DepartmentTagSelectorView.php
@@ -93,7 +93,7 @@ class DepartmentTagSelectorView extends View
     /**
      * {@inheritdoc}
      */
-    public function render(...$data) : string
+    public function render(mixed ...$data) : string
     {
         $this->id         = $data[0];
         $this->name       = $data[1];
diff --git a/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorPopupView.php b/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorPopupView.php
index ab44188..0396cbb 100755
--- a/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorPopupView.php
+++ b/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorPopupView.php
@@ -76,7 +76,7 @@ class PositionTagSelectorPopupView extends View
     /**
      * {@inheritdoc}
      */
-    public function render(...$data) : string
+    public function render(mixed ...$data) : string
     {
         $this->id = $data[0] ?? $this->id;
         return parent::render();
diff --git a/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorView.php b/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorView.php
index f0600d8..cffef48 100755
--- a/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorView.php
+++ b/Theme/Backend/Components/PositionTagSelector/PositionTagSelectorView.php
@@ -93,7 +93,7 @@ class PositionTagSelectorView extends View
     /**
      * {@inheritdoc}
      */
-    public function render(...$data) : string
+    public function render(mixed ...$data) : string
     {
         $this->id         = $data[0];
         $this->name       = $data[1];
diff --git a/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorPopupView.php b/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorPopupView.php
index 3c86587..291960b 100755
--- a/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorPopupView.php
+++ b/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorPopupView.php
@@ -76,7 +76,7 @@ class UnitTagSelectorPopupView extends View
     /**
      * {@inheritdoc}
      */
-    public function render(...$data) : string
+    public function render(mixed ...$data) : string
     {
         $this->id = $data[0] ?? $this->id;
         return parent::render();
diff --git a/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorView.php b/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorView.php
index 4a33f80..5602440 100755
--- a/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorView.php
+++ b/Theme/Backend/Components/UnitTagSelector/UnitTagSelectorView.php
@@ -93,7 +93,7 @@ class UnitTagSelectorView extends View
     /**
      * {@inheritdoc}
      */
-    public function render(...$data) : string
+    public function render(mixed ...$data) : string
     {
         $this->id         = $data[0];
         $this->name       = $data[1];
diff --git a/composer.json b/composer.json
index ac4e7bd..15e8d01 100755
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
         "friendsofphp/php-cs-fixer": ">=3.8",
         "squizlabs/php_codesniffer": ">=3.6",
         "phpmd/phpmd": ">=2.9",
-        "phpstan/phpstan": ">=1.5.4",
+        "phpstan/phpstan": ">=1.8.6",
         "phan/phan": ">=3.2.6"
     },
     "minimum-stability": "dev",