diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8336a0d..fb6e40c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,10 +6,12 @@ on:
 
 jobs:
   PHPUnit:
-    runs-on: ubuntu-latest
+    name: PHPUnit (PHP ${{ matrix.php }})
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         php:
+          - 8.0
           - 7.4
           - 7.3
           - 7.2
@@ -31,6 +33,15 @@ jobs:
       - run: vendor/bin/phpunit --coverage-text -c phpunit.xml.legacy
         if: ${{ matrix.php < 7.3 }}
       - run: composer build
+      - run: composer require symfony/console:^6.0 --dry-run --working-dir=tests/install-as-dep
+        if: ${{ matrix.php >= 8.0 }}
+      - run: composer require symfony/console:^5.0 --dry-run --working-dir=tests/install-as-dep
+        if: ${{ matrix.php >= 7.2 }}
+      - run: composer require symfony/console:^4.0 --dry-run --working-dir=tests/install-as-dep
+        if: ${{ matrix.php >= 7.1 && matrix.php < 8.0 }}
+      - run: composer require symfony/console:^3.0 --dry-run --working-dir=tests/install-as-dep
+        if: ${{ matrix.php >= 5.5 && matrix.php < 8.0 }}
+      - run: composer install --dry-run --working-dir=tests/install-as-dep
 
   PHPUnit-hhvm:
     name: PHPUnit (HHVM)
@@ -42,13 +53,4 @@ jobs:
           version: lts-3.30
       - run: hhvm $(which composer) install
       - run: hhvm vendor/bin/phpunit
-
-  Install-with-Symfony-4:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
-        with:
-          php-version: 7.3
       - run: composer install --dry-run --working-dir=tests/install-as-dep
diff --git a/composer.json b/composer.json
index 6b5d477..93a2898 100644
--- a/composer.json
+++ b/composer.json
@@ -13,9 +13,9 @@
     "require": {
         "php": ">=5.3.6",
         "knplabs/packagist-api": "^1.0",
-        "symfony/console": "^5.0 || ^4.0 || ^3.0 || ^2.5",
-        "symfony/finder": "^5.0 || ^4.0 || ^3.0 || ^2.5",
-        "symfony/process": "^5.0 || ^4.0 || ^3.0 || ^2.5"
+        "symfony/console": "^6.0 || ^5.0 || ^4.0 || ^3.0 || ^2.5",
+        "symfony/finder": "^6.0 || ^5.0 || ^4.0 || ^3.0 || ^2.5",
+        "symfony/process": "^6.0 || ^5.0 || ^4.0 || ^3.0 || ^2.5"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5 || ^5.7 || ^4.8.36"
diff --git a/tests/install-as-dep/composer.json b/tests/install-as-dep/composer.json
index 7d0ab2f..e1bc438 100644
--- a/tests/install-as-dep/composer.json
+++ b/tests/install-as-dep/composer.json
@@ -1,6 +1,6 @@
 {
     "require": {
-        "symfony/console": "^4.0"
+        "symfony/console": "*"
     },
     "require-dev": {
         "clue/phar-composer": "*@dev"