diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 8a21eea..29d3740 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -26,6 +26,10 @@ jobs:
         symfony-require:
           - '6.4.*'
           - '7.4.*'
+          - '8.*'
+        exclude:
+            - php-version: '8.3'
+              symfony-require: '8.*'
 
     name: Unit tests on PHP ${{ matrix.php-version }} with Symfony ${{ matrix.symfony-require }} (${{ matrix.coverage-driver }})
 
diff --git a/composer.json b/composer.json
index 672f72f..885f18d 100644
--- a/composer.json
+++ b/composer.json
@@ -32,10 +32,10 @@
         "php": "^8.3",
         "infection/abstract-testframework-adapter": "^0.5.0",
         "infection/include-interceptor": "^0.2.0",
-        "symfony/filesystem": "^6.4 || ^7.4",
-        "symfony/process": "^6.4 || ^7.4",
-        "symfony/yaml": "^6.4 || ^7.4",
-        "webmozart/assert": "^1.2 || ^2.0"
+        "symfony/filesystem": "^6.4 || ^7.4 || ^8.0",
+        "symfony/process": "^6.4 || ^7.4 || ^8.0",
+        "symfony/yaml": "^6.4 || ^7.4 || ^8.0",
+        "webmozart/assert": "^1.2 || ^2.0 || ^8.0"
     },
     "extra": {
         "infection": {
diff --git a/composer.lock b/composer.lock
index 997c981..1a4595b 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "549bacae9b4c035736602fd4cf877dd7",
+    "content-hash": "2e5a6ca8b4855a9f8f61c2c9cb2c898f",
     "packages": [
         {
             "name": "infection/abstract-testframework-adapter",