diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ec1ea0730..5324b5427 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -92,7 +92,6 @@ jobs:
                 php-version:
                     - '8.2'
                 symfony-version:
-                    - '6.3.x-dev'
                     - '6.4.x-dev'
                     - '7.0.x-dev'
                 dependency-versions: ['highest']
@@ -100,11 +99,11 @@ jobs:
                 include:
                     # testing lowest PHP+dependencies with lowest Symfony
                     - php-version: '8.1'
-                      symfony-version: '6.3.*'
+                      symfony-version: '6.4.*'
                       dependency-versions: 'lowest'
                     # testing lowest PHP+dependencies with highest Symfony
                     - php-version: '8.1'
-                      symfony-version: '6.3.*'
+                      symfony-version: '6.4.*'
                       dependency-versions: 'highest'
 
         steps:
diff --git a/composer.json b/composer.json
index 6798c08fb..2c7db2232 100644
--- a/composer.json
+++ b/composer.json
@@ -16,24 +16,24 @@
         "php": ">=8.1",
         "doctrine/inflector": "^2.0",
         "nikic/php-parser": "^4.18|^5.0",
-        "symfony/config": "^6.3|^7.0",
-        "symfony/console": "^6.3|^7.0",
-        "symfony/dependency-injection": "^6.3|^7.0",
+        "symfony/config": "^6.4|^7.0",
+        "symfony/console": "^6.4|^7.0",
+        "symfony/dependency-injection": "^6.4|^7.0",
         "symfony/deprecation-contracts": "^2.2|^3",
-        "symfony/filesystem": "^6.3|^7.0",
-        "symfony/finder": "^6.3|^7.0",
-        "symfony/framework-bundle": "^6.3|^7.0",
-        "symfony/http-kernel": "^6.3|^7.0",
-        "symfony/process": "^6.3|^7.0"
+        "symfony/filesystem": "^6.4|^7.0",
+        "symfony/finder": "^6.4|^7.0",
+        "symfony/framework-bundle": "^6.4|^7.0",
+        "symfony/http-kernel": "^6.4|^7.0",
+        "symfony/process": "^6.4|^7.0"
     },
     "require-dev": {
         "composer/semver": "^3.0",
         "doctrine/doctrine-bundle": "^2.5.0",
         "doctrine/orm": "^2.10.0",
-        "symfony/http-client": "^6.3|^7.0",
-        "symfony/phpunit-bridge": "^6.3|^7.0",
-        "symfony/security-core": "^6.3|^7.0",
-        "symfony/yaml": "^6.3|^7.0",
+        "symfony/http-client": "^6.4|^7.0",
+        "symfony/phpunit-bridge": "^6.4.1|^7.0",
+        "symfony/security-core": "^6.4|^7.0",
+        "symfony/yaml": "^6.4|^7.0",
         "twig/twig": "^3.0|^4.x-dev"
     },
     "config": {
diff --git a/src/Test/MakerTestEnvironment.php b/src/Test/MakerTestEnvironment.php
index 7970a19e7..29187b94d 100644
--- a/src/Test/MakerTestEnvironment.php
+++ b/src/Test/MakerTestEnvironment.php
@@ -158,16 +158,12 @@ public function prepareDirectory(): void
                 $dependencies = $this->determineMissingDependencies();
                 if ($dependencies) {
                     // -v actually silences the "very" verbose output in case of an error
-                    $composerProcess = MakerTestProcess::create(sprintf('composer require %s -v', implode(' ', $dependencies)), $this->path);
+                    $composerProcess = MakerTestProcess::create(sprintf('composer require %s -v', implode(' ', $dependencies)), $this->path)
+                        ->run(true)
+                    ;
 
-                    // @legacy Temporary code until doctrine/dbal 3.7 is out (which supports symfony/console 7.0
-                    $composerProcess->run(true);
                     if (!$composerProcess->isSuccessful()) {
-                        if (str_contains($composerProcess->getErrorOutput(), 'Declaration of Doctrine\DBAL\Tools\Console\Command\RunSqlCommand::execute')) {
-                            $this->patchDoctrineDbalForSymfony7();
-                        } else {
-                            throw new \Exception(sprintf('Error running command: composer require %s -v. Output: "%s". Error: "%s"', implode(' ', $dependencies), $composerProcess->getOutput(), $composerProcess->getErrorOutput()));
-                        }
+                        throw new \Exception(sprintf('Error running command: composer require %s -v. Output: "%s". Error: "%s"', implode(' ', $dependencies), $composerProcess->getOutput(), $composerProcess->getErrorOutput()));
                     }
                 }
 
@@ -449,22 +445,4 @@ private function addMakerBundleRepoToComposer(string $composerJsonPath): void
 
         file_put_contents($composerJsonPath, json_encode($composerJson, \JSON_THROW_ON_ERROR | \JSON_PRETTY_PRINT | \JSON_UNESCAPED_SLASHES));
     }
-
-    private function patchDoctrineDbalForSymfony7(): void
-    {
-        $commandPath = $this->path.'/vendor/doctrine/dbal/src/Tools/Console/Command/RunSqlCommand.php';
-        $contents = file_get_contents($commandPath);
-
-        $needle = 'protected function execute(InputInterface $input, OutputInterface $output)';
-        if (str_contains($contents, $needle.': int')) {
-            return;
-        }
-
-        $contents = str_replace(
-            $needle,
-            $needle.': int',
-            $contents
-        );
-        file_put_contents($commandPath, $contents);
-    }
 }