diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
new file mode 100644
index 0000000..391c193
--- /dev/null
+++ b/.github/workflows/phpstan.yml
@@ -0,0 +1,28 @@
+name: PHPStan
+
+on:
+    push:
+        paths:
+            - '**.php'
+            - 'phpstan.neon.dist'
+
+jobs:
+    phpstan:
+        name: phpstan
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v4
+
+            - name: Setup PHP
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: '8.2'
+                  extensions: dom, curl, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv
+                  coverage: none
+
+            - name: Install dependencies
+              run: |
+                  composer update --no-interaction --prefer-dist
+
+            - name: Run PHPStan
+              run: ./vendor/bin/phpstan
diff --git a/.github/workflows/laravel.yml b/.github/workflows/run-tests.yml
similarity index 94%
rename from .github/workflows/laravel.yml
rename to .github/workflows/run-tests.yml
index 4d2aa68..cca4487 100644
--- a/.github/workflows/laravel.yml
+++ b/.github/workflows/run-tests.yml
@@ -1,4 +1,4 @@
-name: Laravel
+name: run-tests
 
 on:
   push:
@@ -20,11 +20,11 @@ jobs:
                   - laravel: 10.*
                     testbench: 8.*
                   - laravel: 11.*
-                    testbench: 9.* 
+                    testbench: 9.*
                 exclude:
                   - laravel: 11.*
                     php: 8.1
-                    
+
         name: P${{ matrix.php }} - L${{ matrix.laravel }} - ${{ matrix.dependency-version }}
 
         steps:
@@ -42,6 +42,6 @@ jobs:
               run: |
                   composer require "laravel/framework:${{ matrix.laravel }}" "orchestra/testbench:${{ matrix.testbench }}" "symfony/console:>=4.3.4" "mockery/mockery:^1.3.2" "nesbot/carbon:>=2.62.1" --no-interaction --no-update
                   composer update --${{ matrix.dependency-version }} --prefer-dist --no-interaction
-            
+
             - name: Execute tests
               run: vendor/bin/phpunit
diff --git a/composer.json b/composer.json
index 24a8cc5..b270c6f 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,8 @@
     },
     "require-dev": {
         "orchestra/testbench": "^6.0|^7.0|^8.0|^9.0",
-        "phpunit/phpunit": "^9.4|^10.1"
+        "phpunit/phpunit": "^9.4|^10.1",
+        "larastan/larastan": "^2.7"
     },
     "autoload": {
         "files": [
@@ -38,6 +39,7 @@
         }
     },
     "scripts": {
+        "analyse": "vendor/bin/phpstan analyse",
         "test": "vendor/bin/phpunit"
     },
     "config": {
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
new file mode 100644
index 0000000..508e07d
--- /dev/null
+++ b/phpstan-baseline.neon
@@ -0,0 +1,17 @@
+parameters:
+	ignoreErrors:
+
+		-
+			message: "#^Call to an undefined static method Appstract\\\\Options\\\\Option\\:\\:where\\(\\)\\.$#"
+			count: 3
+			path: src/Option.php
+
+		-
+			message: "#^Call to an undefined static method Appstract\\\\Options\\\\Option\\:\\:updateOrCreate\\(\\)\\.$#"
+			count: 1
+			path: src/Option.php
+
+		-
+			message: "#^Call to an undefined static method Appstract\\\\Options\\\\OptionFacade\\:\\:set\\(\\)\\.$#"
+			count: 1
+			path: src/Console/OptionSetCommand.php
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 0000000..6777b3c
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,14 @@
+includes:
+    - phpstan-baseline.neon
+
+parameters:
+    level: 5
+    paths:
+        - src
+        - database
+    tmpDir: build/phpstan
+    checkMissingIterableValueType: true
+    reportUnmatchedIgnoredErrors: false
+
+    ignoreErrors:
+        - '#Unsafe usage of new static#'
diff --git a/phpunit.xml b/phpunit.xml.dist
similarity index 91%
rename from phpunit.xml
rename to phpunit.xml.dist
index 7f1ac1f..b13aaac 100644
--- a/phpunit.xml
+++ b/phpunit.xml.dist
@@ -5,12 +5,12 @@
       <directory>tests</directory>
     </testsuite>
   </testsuites>
-  <source ignoreSuppressionOfPhpWarnings="true">
+  <source>
     <include>
       <directory suffix=".php">src/</directory>
     </include>
   </source>
   <php>
     <env name="APP_KEY" value="AckfSECXIvnK5r28GVIWUAxmbBSjTsmF"/>
-  </php>  
+  </php>
 </phpunit>
diff --git a/src/Option.php b/src/Option.php
index 21cb011..fc24242 100644
--- a/src/Option.php
+++ b/src/Option.php
@@ -25,7 +25,7 @@ class Option extends Model
     /**
      * The attributes that are mass assignable.
      *
-     * @var [type]
+     * @var array<int, string>
      */
     protected $fillable = [
         'key',