diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7b145d4..2065a4e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -13,8 +13,13 @@ jobs:
     strategy:
       matrix:
         php: [7.4, 8.0, 8.1, 8.2]
-        symfony-version: [4.4.*, 5.4.*]
+        symfony-version: [4.4.*, 5.4.*, 6.4.*]
         composer-flags: ['', '--prefer-lowest']
+        exclude:
+          - php: 7.4
+            symfony-version: 6.4.*
+          - php: 8.0
+            symfony-version: 6.4.*
       fail-fast: true
     steps:
       - uses: actions/checkout@v4
diff --git a/composer.json b/composer.json
index cd538cd..86cba54 100644
--- a/composer.json
+++ b/composer.json
@@ -20,12 +20,12 @@
     "require": {
         "php": ">=7.4",
         "wallabag/rulerz": "dev-master",
-        "symfony/validator": "^4.4|^5.4",
-        "symfony/form": "^4.4|^5.4"
+        "symfony/validator": "^4.4|^5.4|^6.4",
+        "symfony/form": "^4.4|^5.4|^6.4"
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5.14",
-        "symfony/phpunit-bridge": "^4.4|^5.4",
+        "phpunit/phpunit": "^8.5.16",
+        "symfony/phpunit-bridge": "^4.4|^5.4|^6.4",
         "liip/rmt": "^1.2"
     }
 }