diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index b1cad46..5633302 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -26,13 +26,11 @@ jobs:
           tools: composer:v2
           coverage: none
 
-      - name: Install dependencies
-        uses: nick-invision/retry@v1
-        with:
-          timeout_minutes: 5
-          max_attempts: 5
-          command: composer update --${{ matrix.stability }} --prefer-dist --no-interaction --no-progress ${{ matrix.flags }}
+      - name: Install Composer dependencies
+        run: |
+          if [[ "${{ matrix.php }}" = "8.3" ]]; then sed -i -e 's/\("orchestra\/testbench":[[:space:]]*\)".*"/\1"^9.0"/' composer.json; fi
+          composer update --${{ matrix.stability }} --prefer-dist --no-interaction --no-progress ${{ matrix.flags }}
 
       - name: Execute tests
         continue-on-error: ${{ matrix.php > 8 }}
-        run: vendor/bin/phpunit --verbose
+        run: vendor/bin/phpunit
diff --git a/.gitignore b/.gitignore
index 8faaf57..fb0eb3e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .idea
+.phpunit.cache
 /vendor
 composer.lock
 .php-cs-fixer.cache
diff --git a/composer.json b/composer.json
index b9e53e0..91fc88d 100644
--- a/composer.json
+++ b/composer.json
@@ -20,8 +20,8 @@
     },
     "require-dev": {
         "mockery/mockery": "^0.9|^1.3",
-        "orchestra/testbench": "^5.19|^6.18|^7.0|^8.0",
-        "phpunit/phpunit": "^8.5|^9.1|^10.0"
+        "orchestra/testbench": "^5.19|^6.18|^7.0|^8.0|^9.0",
+        "phpunit/phpunit": "^8.5|^9.1|^10.0|^11.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 6079ee3..ce008e0 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,14 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" backupStaticAttributes="false"
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false"
          beStrictAboutTestsThatDoNotTestAnything="false" bootstrap="vendor/autoload.php" colors="true"
-         convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true"
-         processIsolation="false" stopOnError="false" stopOnFailure="false" verbose="true"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
-    <coverage processUncoveredFiles="true">
-        <include>
-            <directory suffix=".php">./src</directory>
-        </include>
-    </coverage>
+         processIsolation="false" stopOnError="false" stopOnFailure="false"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.0/phpunit.xsd" cacheDirectory=".phpunit.cache"
+         backupStaticProperties="false">
     <testsuites>
         <testsuite name="Package Test Suite">
             <directory suffix="Test.php">./tests</directory>
@@ -20,4 +15,9 @@
         <env name="APP_DEBUG" value="true"/>
         <env name="SESSION_DRIVER" value="file"/>
     </php>
+    <source>
+        <include>
+            <directory suffix=".php">./src</directory>
+        </include>
+    </source>
 </phpunit>
diff --git a/tests/Console/ParallelCommandTest.php b/tests/Console/ParallelCommandTest.php
index d8164ad..fd234b3 100644
--- a/tests/Console/ParallelCommandTest.php
+++ b/tests/Console/ParallelCommandTest.php
@@ -3,8 +3,6 @@
 namespace Recca0120\LaravelParallel\Tests\Console;
 
 use Illuminate\Foundation\Auth\User;
-use Illuminate\Foundation\Testing\RefreshDatabase;
-use Illuminate\Foundation\Testing\WithFaker;
 use Illuminate\Http\Response;
 use Recca0120\LaravelParallel\Console\ParallelCommand;
 use Recca0120\LaravelParallel\ResponseIdentifier;
@@ -14,9 +12,6 @@
 
 class ParallelCommandTest extends TestCase
 {
-    use RefreshDatabase;
-    use WithFaker;
-
     /**
      * @var User
      */
diff --git a/tests/Fixtures/SetupDatabase.php b/tests/Fixtures/SetupDatabase.php
index 7549e4b..3f95d1f 100644
--- a/tests/Fixtures/SetupDatabase.php
+++ b/tests/Fixtures/SetupDatabase.php
@@ -2,6 +2,7 @@
 
 namespace Recca0120\LaravelParallel\Tests\Fixtures;
 
+use Illuminate\Database\Schema\Builder;
 use Illuminate\Support\Facades\Hash;
 
 trait SetupDatabase
@@ -18,8 +19,10 @@ protected function databaseSetUp($app)
 
         $app['config']->set('auth.providers.users.model', User::class);
 
+        /** @var Builder $schema */
         $schema = $app['db']->getSchemaBuilder();
 
+        $schema->dropIfExists('users');
         $schema->create('users', function ($table) {
             $table->increments('id');
             $table->string('email')->unique();