diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 04e322d..5e59a10 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -53,6 +53,28 @@ jobs:
       - name: Run PHPUnit
         run: composer test
 
+  phpstan:
+    name: PHPStan
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v6.0.2
+
+      - uses: shivammathur/setup-php@2.37.0
+        with:
+          php-version: '8.3'
+          coverage: none
+          tools: composer:v2
+
+      - name: Install dependencies
+        run: composer update --prefer-dist --no-interaction --no-progress
+
+      - name: Install PHPStan
+        run: composer require --dev phpstan/phpstan:^1.10 --no-interaction --no-progress
+
+      - name: Run PHPStan
+        run: vendor/bin/phpstan analyse --configuration=phpstan.neon
+
   lowest-dependencies:
     name: Lowest dependencies
     runs-on: ubuntu-latest
diff --git a/composer.json b/composer.json
index b51ea2e..c33036c 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,6 @@
     "voku/portable-utf8": "^6.0"
   },
   "require-dev": {
-    "phpstan/phpstan": "^1.10",
     "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
   },
   "autoload": {
@@ -28,5 +27,8 @@
     "psr-4": {
       "voku\\Html2Text\\tests\\": "tests"
     }
+  },
+  "scripts": {
+    "test": "vendor/bin/phpunit"
   }
 }