diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 852c283..d89c5f3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -199,3 +199,28 @@ jobs:
         typo3-version:
           - ^9.5
           - ^10.4
+  security-test:
+    name: "PHP Security test"
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-version:
+          - 7.4
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: "Install PHP"
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "${{ matrix.php-version }}"
+      - name: "Cache dependencies installed with composer"
+        uses: actions/cache@v1
+        with:
+          key: "php${{ matrix.php-version }}
+               -composer-${{ hashFiles('**/composer.json') }}"
+          path: ~/.composer/cache
+          restore-keys: "php${{ matrix.php-version }}-composer-\n"
+      - name: "Install Composer dependencies"
+        run: "composer install --no-progress"
+      - name: "Run PHP Security test"
+        run: "composer ci:security"
diff --git a/composer.json b/composer.json
index c55a309..f889524 100644
--- a/composer.json
+++ b/composer.json
@@ -39,9 +39,10 @@
         "nimut/testing-framework": "^5.0.3",
         "phpunit/phpunit": "^7.5.20",
         "squizlabs/php_codesniffer": "^3.5.5",
-        "typo3/cms-fluid-styled-content": "^9.5 || 10.4",
+        "typo3/cms-fluid-styled-content": "^9.5 || ^10.4",
         "seld/jsonlint": "^1.8",
-        "phpdocumentor/reflection-docblock": "<= 5.1 || > 5.2"
+        "phpdocumentor/reflection-docblock": "<= 5.1 || > 5.2",
+        "sensiolabs/security-checker": "^6.0"
     },
     "replace": {
         "typo3-ter/tea": "self.version"
@@ -72,6 +73,7 @@
         "ci:ts:lint": ".Build/vendor/bin/typoscript-lint -c Configuration/TsLint.yml --ansi -n --fail-on-warnings -vvv Configuration/TypoScript",
         "ci:tests:unit": ".Build/vendor/bin/phpunit -c .Build/vendor/nimut/testing-framework/res/Configuration/UnitTests.xml Tests/Unit",
         "ci:tests:functional": "find 'Tests/Functional' -wholename '*Test.php' | parallel --gnu 'echo; echo \"Running functional test suite {}\"; .Build/vendor/bin/phpunit -c .Build/vendor/nimut/testing-framework/res/Configuration/FunctionalTests.xml {}';",
+        "ci:security": ".Build/vendor/bin/security-checker security:check",
         "ci:tests": [
             "@ci:tests:unit",
             "@ci:tests:functional"