diff --git a/composer.json b/composer.json
index c521a6fdad..0dfefb3475 100644
--- a/composer.json
+++ b/composer.json
@@ -112,7 +112,7 @@
         "doctrine/cache": "~1.6",
         "doctrine/collections": "~1.0",
         "doctrine/data-fixtures": "^1.1",
-        "doctrine/dbal": "~2.4",
+        "doctrine/dbal": "~2.4|^3.0",
         "doctrine/orm": "~2.4,>=2.4.5",
         "doctrine/reflection": "~1.0",
         "doctrine/doctrine-bundle": "^2.0",
diff --git a/src/Symfony/Bridge/Doctrine/composer.json b/src/Symfony/Bridge/Doctrine/composer.json
index 0a7adf16d7..b12d621105 100644
--- a/src/Symfony/Bridge/Doctrine/composer.json
+++ b/src/Symfony/Bridge/Doctrine/composer.json
@@ -46,7 +46,7 @@
         "doctrine/cache": "~1.6",
         "doctrine/collections": "~1.0",
         "doctrine/data-fixtures": "^1.1",
-        "doctrine/dbal": "~2.4",
+        "doctrine/dbal": "~2.4|^3.0",
         "doctrine/orm": "^2.6.3",
         "doctrine/reflection": "~1.0"
     },
diff --git a/src/Symfony/Component/Filesystem/Filesystem.php b/src/Symfony/Component/Filesystem/Filesystem.php
index b6df1bd967..d2131c9b9d 100644
--- a/src/Symfony/Component/Filesystem/Filesystem.php
+++ b/src/Symfony/Component/Filesystem/Filesystem.php
@@ -194,7 +194,7 @@ class Filesystem
     public function chmod($files, int $mode, int $umask = 0000, bool $recursive = false)
     {
         foreach ($this->toIterable($files) as $file) {
-            if (true !== @chmod($file, $mode & ~$umask)) {
+            if ((\PHP_VERSION_ID < 80000 || \is_int($mode)) && true !== @chmod($file, $mode & ~$umask)) {
                 throw new IOException(sprintf('Failed to chmod file "%s".', $file), 0, null, $file);
             }
             if ($recursive && is_dir($file) && !is_link($file)) {